Side by Side Comparison of: 3M vs Comanro

I have used these mice for about 10 years. This is the only way I can use a mouse for more than an hour without a lot of pain.The only negative is reliability. I have a very old grey buttoned version that is still going (except right click is flaky). The newer versions I have bought (black button) have not lasted as long. Even considering the reliability issues, these mice are excellent in my opinion.To clarify what some people have asked in the comments - the grey buttoned versions are older and have a lower DPI (but seem really reliable). The newer version has a black button and higher DPI (but may not be as reliable). Amazon's pictures show both the old (grey) and new (black) versions. If you are wondering if Amazon will ship you a old or a new the answer is new (black button). The change came about 5 years ago so the old grey ones would not exist in new form from any supplier at this point.

I started using this mouse several years ago because I was having carpal tunnel type pain in my arm and wrist. The pain went away after a few weeks, and has not returned. Getting used to this mouse was easy; in fact, I don't even think about it anymore, and wonder why the IT guys stop before working at my computer. There are some products which just work. This is one of them.

I was having hand pains from using a mouse, and had previously been using a different erg mouse that was shaped like a regular mouse except rotated so that your thumb was facing up. Anyway, my friend was using a joystick mouse and raved about it so I thought I'd try it out.I was shocked to see that a lot of joystick mouses were $100+! But also glad to find this 3M one that was significantly lower priced. I purchased it and was glad I did. It initially takes a little time to get use to using and you may get a few inquiries from your co-workers, but the grip is significantly easier on your hand and since I've been using this mouse I do not get any hand pains.I have had this mouse for about 6 months now and have not had any issues with it. (which I cannot say the same about the prior erg mouse I bought, which I had to replace after a few months).If you're worried that the shape is a little strange, once you get use to it it feels a lot more natural than a standard mouse. Yes, it costs a little more than a standard mouse, but it is totally worth it. The only downside is that the scoll feature is a little finicky. Whereas in a standard mouse you can roll the wheel at the speed you want and stop it at precisely where you want, for this mouse you squeeze the "trigger" button and drag up and down. You can scroll faster or slower this way, but it's not as precise as a wheel.

I purchased this device - the large version - after flight-testing the small version. The latter had been given to me by my company ergo-expert to alleviate discomfort in my hand from mousing. I like the joystick design.The small version was just that: too small for my hand. The large version is ideal for me and the discomfort I was experiencing went away.One downside tot he device is that it does not have a scroll wheel. For me, this was not an issue, I simply use the page up/down keys on my keyboard. It works for me and allows me to move and grip differently. At the same time, I can see how some might find the absence of the scroll wheel annoying.

I bought one of these suckers back in 2012. It still works. I haven't had any abnormal double-click issues (unlike some other mice I've bought). To be fair, I use this mouse on and off over the course of a day, and some days don't touch it.The 3M ergo mouse doesn't take too long to get used to it and get to be adequately accurate. I've found, however, that even after all this time I'm still a little bit less precise with this compared to a "normal" mouse, and considering the speed at which I work this can annoy me. If I'm working with mouse-heavy applications that require precision (in my case, UE4's node-based scripting, or working on GUIs, or playing games for completely professional reasons), I switch to my 'normal' mouse. I also continue to use a 'normal' mouse at home. Still, this is great for most of my work. If I'm just clicking around an IDE or checking emails or whatnot it's perfectly adequate and comfortable.Previous to this I owned an Evoluent VerticalMouse. This is much more comfortable for extended periods of time that that mouse. I think it might be that it's less severely vertical, or perhaps that you can curl your fingers around it, but I experience no fatigue at all with this, while the VerticalMouse was only a minor improvement over a normal horizontal mouse.

Back in the 90's when I first got a computer I quickly developed carpal tunnel syndrome, after trying wrist supports I looked for a different type of mouse. I came upon the Anir ergonomic mouse, this was the original design before 3M acquired them. It had the rollerball and needed periodic cleaning. Touch time to adapt to movement of the cursor, not as precise as regular mouse, because its all arm and shoulder controlled. But the wrist pain was eliminated so I could spend long hours now on the computer. When i do on occasion use a regular mouse it doesn't take long before the old misery returns. I WILL NEVER GO BACK. When 3M came out with the EM500GPL optical version I got it and love it- no more cleaning out the gunk. I've had this one for +10 years of carefree use. When I switched to an iMac recently I hoped that it would work with it. It does but without the scroll feature. Too bad but having no pain is really the priority. The reason I am writing a review now is because I looked at the wireless model and was considering it but the reviews on it showed issues-mainly buttons stop working. Also it isn't bluetooth or laser so it must be old and not updated with the newer technologies- so I pass and will stick with what works. If 3M decides to come out a wireless bluetooth model I'd be interested then.

I bought this for my sister. She works many hours on the computer and began having wrist pain. I bought this to try and help relieve some of her pain. It has worked beautifully. It is comfortable and the quality is great.

Overall, a good product. The mouse is comfortable, buttons are easy to reach and all have smooth action. The only button that bothers me a little bit is the back/forward button at the base of the chrome thumb panel. I have irregular-sized hands. My palms are large, and my thumb is a normal size, but my index, middle, ring, and pinky fingers are somewhat shorter than they should be for a hand that has a palm and thumb as big as mine. So when I want to hit the back button on this button cluster, I have to pull my thumb back to an uncomfortable angle to trigger it, which causes me to have to lift my fingers and palm off of most of the mouse. I am not docking any stars for this because I can't imagine that everyone would have this problem, as this is mostly related to the odd proportions of my hands, but I figured it was worth mentioning.

There are four DPI settings on the unit that can be changed on-the-fly by clicking a thin, transversally-situated chrome button at the base of the right and left mouse buttons. This is well-designed and I very rarely trigger this button by accident, if I have ever done so.

The scroll button has a nice, smooth action and is very easy to operate.

There are two power-on options for the unit. One which simply turns the mouse on, and another, which turns the mouse on and activates the light on the side, directly below the chrome thumb panel. I have noticed no difference in the operation of the mouse between these two power settings, of course, other than the light being on and changing colors every few seconds. It should be noted that the setting to keep the side light on will likely wear down on the battery faster than not having that light on.

The mouse comes in a nice hard box and includes a foam place holder to keep the mouse in place when it is in the box, a quick-start booklet, and a charging cable - USB to mini-usb - with a velcro strap for easy coiling and storage. The mouse is plug-and-play, out of the box. The mouse holds a charge for an exorbitantly long amount of time; I have had the device for about three months, and only needed to charge it for about two hours once. It had a charge out of the box that lasted almost a month with daily operation. I have used it slightly less, interchanging with another mouse intermittently since then, so it might be something more in the range of needing a charge once a month. Still, very limited amount of charging needed to operate this unit, which is a huge plus.

Build quality is good, but it unfortunately did not live up to my expectations for an $84 mouse. The chrome metal pieces of this mouse are rock-solid, and the black frame feels nice, but the dark blue components feel kind of cheesy at times. I also noticed that the switch on the bottom just doesn't look or feel very high-quality. The power switches on $30 logitech mice I have used in the past were of a higher quality. Overall, it's a high quality product, but the price point that I paid was a bit high for the build quality I ended up getting.

To add to the concerns about build quality, this is a light mouse. The listing gives you a shipping weight of 10.4 ounces, but no product-specific weight in the item listing (if anyone finds this, please respond to this post with a correction; I was unable to find it listed anywhere). I was expecting a much heavier mouse, but was floored by how light this unit actually is in real life. Just be aware of this if you are expecting a heavier mouse. This, in general, does not take away or hinder the performance of the mouse in any way.

Performance is unmatched for an ergonomic mouse. I prefer high-DPI settings, and sometimes like to change the sensitivity based on what I am doing. As stated earlier, changing the DPI setting on the unit is a cinch and can be done easily on the fly. The unit will tell you what DPI setting has just been selected by flashing the Human Ergonomics symbol a certain number of times. Overall, very easy to use this setting and cannot say that I have used any other mice - save a couple high-end gaming mice - that allow you to change DPI settings this easily on the fly.

Overall, despite some small setbacks, I'm a huge fan and would recommend this mouse to anyone shopping in this price range. Please be sure to read other reviews - especially from users with different hand sizes - to make sure you get a good idea of what their experiences are with the product. As stated earlier in the review, my hands have an odd size and should not be used as a basis for how this mouse will fit in your hand.

wow. Not cheaply fabricated at all. What might fool some less astute folks is the very lightweight, almost weightlessness of the product which is part of it's therapeutic value. It is aesthetically pleasing AND fast and accurate. The best thing about it is that I got it for my wife who has arthritis and it relieved the pressure in her wrist and fingers making her feel much better (and we all know about a happy wife/happy life). Have had this mouse for over a month and so far so good. Overall I highly recommend this mouse to EVERYONE and especially gamers and those who have hand/wrist issues!

Top flight vertical mouse good design takes about a week to get used 2 after that its a breeze totally satisfied with the purchase. KB Smooth gliding feather light well built i like the lights feature on the side & it,s rechargeable it lasts 1 & half to 2 months on 1 charge. The mouse is high end well worth the money i use it for everything.

I own a small business and my mouse and keyboard are my life. I just returned the new Logitech master mouse for this one and I have to say that I am pleased with this mouse. Very comfortable, good for my large hand size. This mouse seems well made. Maybe a little flashy with the light up feature which rotates a series of colored lights against the logo. I recommend this mouse, but might need to go back to the new Logitech master mouse as the scroll wheel on that mouse is like a Ferrari compared to this one and most others.

I suffer from chronic wrist pain and tennis elbow and by using this ergonomic mouse I have reduced the amount of pain I feel. I do a lot of photo editing and online work but due to my chronic pain, I am unable to use the mousepad. My physical therapist recommended this mouse. While it has eliminated most of my pain, I have noticed that other areas are starting to hurt a bit when I spend many hours working. No fault of the mouse, it is just overuse of my fingers and arm. All in all I would recommend this mouse if you have any chronic issues.

Works great, relieved strain in one part of my forearm from index-clicking. Ended up causing strain in my thumb tendons and extensor carpi ulnaris tendon though.

I ordered this Feb 16th and received it on Feb 17th- with my prime 2 day free shipping (magic!). Here's my review right out of the box:1. I got the small size. My hand width is between 3.0 in and 3.5 in, and the small feels fine to me.2. I understand that some reviewers might think it's clunky and doesn't track that nicely. No, it does not function as smoothly and you can't operate it as effortlessly as a regular old mouse clicker. However, I did not buy this ergonomic mouse to act just like a regular mouse. I bought it so that I could avoid the excruciating, shooting, unbearable pain in my index finger. And guess what? This ergonomic mouse is perfect for that! One day I'm trying to pull my finger off to make it stop hurting so bad, the next day the pain is gone and I'm using my ergonomic mouse. Yay!I'll update my review if this ergonomic mouse goes kaput or something like that.

*Edit: This mouse is awful if you're a computer programmer. - SO I use two mice.. One for general usage; emails, meetings, browsing, researching, and another mouse for programming..*Great mouse, but the mouse is sadly way too small. Their "large" would fit like a US Medium sized t shirt. I guess they thought that people will actually 'large' hands will not be using this mouse. I'm 6'0, 175 pounds, medium build, but I can only put four fingers on the dang mouse. My pink is flailing around at the bottom to allow my four other fingers to fit comfortably.Either way, the pressure alleviated from my wrist is quite worth it.I highly recommend this mouse given that your a fairly small person with smaller hands.A Large would seem to fit a person .. maybe 120-160 pounds, andA small would seem appropriate for a person that is under 120 pounds

I purchased this erg-mouse to relieve finger pain and stiffness from 30 years of mouse clicking. After a day of (standard) mouse clicking, the joints at the middle two fingers on my right hand would freeze up during the night. It required using my left hand to work them lose every morning. Now that I have been using this ergo-mouse for about a week, the morning stiffness has noticeably decreased.Holding and gripping a joystick takes some getting used to after so many years of simply pushing a mouse around on the desktop, particularly when 'fine tuning' the pointer position during CAD (computer aided design) work.The only downside so far: because the joystick design keeps your hand in an upright position, the height of the work surface comes into play. Just be sure you can position this mouse at a comfortable height. Otherwise you might find yourself holding your hand in an awkward position to use this product.

I'm a designer + a gamer so I'm on the computer anywhere from 8 to 16 hours a day. I'm also only 28 - but started getting pretty bad pain in my right arm from using the mouse. It wasn't as bad as some of the reviewers here, but it became harder and harder for me to focus and get work done with the constant aching in my forearm. I was doing carpal tunnel exercises [...] to help with the pain, but it dawned on me that I probably couldn't keep this up for another 30 years using the same methods. So, I purchased this mouse.A few things after a few months of use:Pros:I've been using a computer since I was 9, but this product came naturally for me. It felt good.Pain is reduced. It's not gone, and hurts in a different way, but it doesn't stick around with you after you leave the computer. Often feels like a sore muscle. It's way less painful than using a mouse.*Cons:For gaming, you have to set the middle button to do what you want - most games don't really recognize it, but it's a mild inconvenience.Scrolling is different and takes some time getting used to.It's not as precise, but i think playing with the sensitivity and speed will help you out.*I feel like my setup isn't quite right. I'm not entirely sure where/how to rest my elbow and it can sometimes get a little awkward. I am going to try pushing keyboard mouse away from me so my elbow is forced to rest on the desk and now the elbow of my chair for more flexibility.

I purchased this mouse since I was having pain in my wrists. it really helped with the pain once I got used to it
PROs:
-- Great for RSI and wrist pain. I was at a point where I couldn't use my hand to eat anymore. it really helped along with medication.

CONs:
-- size is a little big. I have average hands and my index finger comes over the wheel in the natural position. Problem solved by using a wrist gel pad.
-- After 7 months of use, the mouse wheel is not working properly anymore. Sometime I just turn it and nothing happens.

Windows 10 PC. The only complaint is, sometimes pressing the back button takes you back two pages, like you double clicked the button. Otherwise, it feels good on the wrist. Get one of those gel wrist rest mouse pads, and this works quite well to reduce stress on the hand/wrist.

Like the feel, easy to use. Different rest position for hand, easier on wrist then bending backwards. More comfortable and easier to use.

Love this mouse, took little adjusting from a standard mouse. After a few days use and the muscles in my lower arm adjusting, I noticed my wrist hurting significantly less.

I love track balls, so this works well but I hate moving a mouse when a ball moves just fine, but I seem to be going thru them fast so I gave this a shot its real comfortable and is a great mouse

There is no scroll wheel, which I hate. Otherwise it's a fun way to change things up.

I've used this mouse for several years, and it has allowed me to continue using a computer fully despite repetitive strain injuries (RSI).However, there is a problem where around once an hour the mouse it will misread the movement and instantly jump a huge distance right and up, landing in the top right corner. Since I have multiple displays, OS X, and hot corners this problem does get in the way.It is also important to realize that this mouse will not be as quick or accurate as your typical high quality desktop mouse because you move it with your whole arm rather than your fingertips, and there is no mouse wheel. I simply got used to using the scroll bar, arrow keys, page up, and page down instead.Despite the issues, this mouse continues to provide the strain relief I need to work that no other mouse has matched. My particular issues are with making the same fingertip motions over For those dealing with RSI pain I recommend you try it. Not every mouse can solve everyone's problems but this one may help you. If they ever update the sensors and eliminate this problem I'd give this mouse the full 5 stars.

The good part is that my right shoulder is relaxed when using the product.Just my pet peeve but there is no way to scroll down or up any window aside from panning on some applications; that's about it.I used this for almost everything-from creating documents, Web browsing, to first-person shooter (FPS) gaming. For document and Web browsing it is okay. For gaming, there are other better, in terms of response time of the clickers, and cheaper, in terms of pricing, vertical mouse out there.Documents and Spreadsheets - 2 of 5Image Editing - 1 of 5Web Browsing - 2 of 5FPS Gaming - 1 of 5Reason of 3-Star Rating: Even though the rating on individual tasks are on 1's and 2's; the comfort that it provides on my shoulder made it 3-Star instead of 1- or 2-Star.

This thing is growing on me. The right click/left click part is very easy; scrolling and selecting text more difficult It takes a little getting used to, but not too bad. I still have my other mouse plugged in, and on occasion, I've resorted to using it when i got frustrated with a cut and paste operation, but for the most part, it works pretty good.Two criticisms:1) The one I got is a right handed mouse. I had thought it would be ambidextrous. I prefer to use my left hand for mousing, but I can adapt. That said, I think they should tell you that it is right handed.2) The scrolling mechanism takes a bit more force to use than is optimal, IMO.Update...downgrading it from four to a three. I'm not so sure it is much better than a traditional mouse.

I have read some of the other reviews about scroll wheel issues, but that is not the big problem with this mouse for most users. I don't think most people use the scroll wheel anyway.But there is a big problem with this mouse.I just bought this a week ago and my first overwhelming impression is of how strange a design it is to have the main mouse button be thumb-operated as this mouse does. It's still bothering me a week later.So that would be bad, but what is worse is that with this mouse thumb-operation is the ONLY option. You cannot fix this or try different button arrangements using mouse settings!But the first reaction is I find it amazing that 3M wants me to now use my thumb to click when I've been using my forefinger my entire life. And when I'm not using this mouse, I will still have to use my forefinger. But they want me to get this thumb habit for some reason. But if there were a benefit to the thumb click, it could be understood, but there seems no benefit. The forefinger is the proper finger for clicking it seems to me; my forefinger just seems vastly better at clicking than my thumb, and inherently so. And the thumb to me seems to bring a variety of issues, not just that one is not accustomed to it, but that it doesn't make any sense to try and get accustomed.So the thumb issue is the problem, but what is worse is that you can't get around it as you might think you ought to be able by simply swapping mouse buttons. The right-click on the 3M mouse is also done with the thumb, and while Windows will let you swap right-click and left-click, it will not let you swap left-click with the scroll wheel button, which is all that large button (visible in the picture) that is on your non-thumb fingers does. So before buying I thought I'd have some flexibility about assigning buttons, but actually I have none. You can make left-clicking be the the thumb, and you can make right-clicking be also the thumb on the upper side of the thumb button, or vice-versa (the thumb button is a rocker). But you cannot get left or right-clicking off the thumb using the typical Windows control panel settings. Of course it would make no sense to make the up-side of the rocker be regular clicking, since that is a much harder click, so this means you have no flexibility at all in assigning buttons with this mouse.So this seems the big downfall to me of this design. If they had made the non-thumb button right-clicking, then you could swap these, which MIGHT help, but since they designed both clicks to be thumb operated, you can't even try that.Now you might reply, "Well, my mouse control panel is super fancy and I can switch the middle-click with left click no problem!" But you STILL will have a problem with this mouse. The geniuses at 3M did not put the side button where your forefinger can easily get to it! They put it where only your second and third fingers are positioned. As a result, if you want to click with your forefinger, you're just out of luck, because you have just dead plastic under that finger.What I don't understand is why they didn't simply add a button to this thing, one where your forefinger goes, which interestingly they have a well-defined spot for. Then they could keep that long button that they already have, for second and third fingers to use. Seems it could have been so simple. Just click with forefinger and right-click with one of the other fingers, just as you do with other mice.Yet I'm not returning this (yet), though it cost over fifty dollars, because it does ease the wrist issue, my main purpose in buying this. But for an expensive mouse, you would think you'd get some button re-assignment options. And this thumb thing may yet drive me absolutely over the edge and at some point in the future this mouse may end up in pieces, smashed on the floor from aggravation. We'll see. I'll try to check in after more time has passed...

The flat of my hand measures 3.5" which according to the instructions on their website is the small size. It was to small for my hand and curling my fingers around the "stick" was painful. Not a relaxed position for me at all. Pushing the base around a mouse pad felt like it was giving more resistance then a normal mouse, probably due to the added weight of your hand. Also, the product felt very "plasticy". For the price tag I would expect something that was perhaps padded or at the very least feeling solid. It also needs more buttons and the buttons need to be customizable. The scroll is fair to ok on this but not great. My arthritis is extensive in all my joints, being in IT my wrists are pretty bad as well. There is a bit to much shoulder motion for me with this and I have a lot of shoulder pain. This might be right for some but not for me, I had to return the product. I gave it three stars because I think this product may very well be a great fit for persons with arthritis that affect them in different ways then myself.Side note: I probably would have tried out the larger size if this product was not so "plasticy" feeling.

I really wanted this to be a great product, but in reality, it is just "ok". It fits my hand well and it does provide the relief of having my hand/wrist in a more vertical position as opposed to laying flat. Unfortunately, it fails at some of the basic functions of a mouse. The "mouse feet pads" on the bottom are too thin and have worn down even more in the few months that I have used it. This leads to feeling like I am dragging the plastic body of the mouse over the desktop/mousepad. But, the worst complaint I have is that the thumb buttons (which I use as forward/back) almost always incorrectly register as a double-click instead of single-click. It is extremely annoying and frequently those buttons don't even register any click at all.

I wish I could recommend this mouse, but there has to be better options.

This review comes from my objective opinion of the device. To be clear, I cannot use this!

My inability to use this comes from within, not as a fault of the device. I am simply not able to become comfortable with adjusting my hand position after two decades of using a regular style mouse. It feels really awkward to turn my hand over and I feel a lot less precise using this device.

That being said, it works perfectly as intended. The response is crisp as you would expect from a laser mouse and the buttons all work fine. The placement of the forward/back buttons is pretty awkward if you're used to a traditional placement, but the buttons respond well. It slides across the desk just like any other mouse.

Overall, a great product, but I simply can't get over the radical change in hand position. I'm a gamer, so that colors my judgement quite a bit. Take it for what it's worth.

I bought the mouse almost a half a year ago. It is more or less fine, quite a solid product.

The only problem which is really big for me. I am a Unix software developer. In Unix we have to use a middle button a lot. It works as "paste selection", no copy and paste separately. Even more, Control/C in Unix mostly means "interrupt" not copy. In this mouse middle button is combined with the scroll wheel. At the very beginning I found that for the middle button the pressing effort is slightly higher than it was comfortable to me but later I adjusted to it, mostly. With time I began to hit a problem, duplicate paste. I press one, I hear a single distinct sound, but I got two copies of selection. It happens more and more often, up to 50% cases. It does not depend on the force and speed of pressing, and I found no way of making single paste whatever I do. Sometimes I see three insertions! I cannot bear it.

I tried to contact support. The only way of contacting is to send e-mail to tony@evmouse.com, somewhat weird. I got no response in six days. Registration on site is not smooth either. You cannot resend e-mail, it always fails, but in reality it might send, just went to junk. I got an activation mail in Chinese, just need to click on a big hyperlink in the middle without reading. The web page does not give anything new to solve my problem, no product registration, no in-site mail or other types of contact.

Anyway, I am going to exchange my mouse with somebody who is not a Unix user before buying a mouse of other brand.

This mouse does the job, but it's really big. Meaning, it has a really big footprint. I kept bumping into my computer when trying to move the cursor across the page. I ended up returning it because I felt I wouldn't use it, due to the frustration about its size.

This mouse works very well and turns the wrist to just the right angle. Mine is the wired version and I've had no trouble at all with the cord getting in the way--no complaints. Seller was excellent in product preparation and speed of shipping. After using this mouse for a couple of weeks, I find that it requires a lot of arm movement as opposed to wrist movement and this gets tiring fairly quickly. Therefore, it has very good features but some minuses as well. I'm glad I have it but keep my old standard mouse operational to give myself a break periodically. It is well made and I think some people will be able to adapt to it more easily than I have. One thing that might help would be to have something to support the wrist so that it doesn't drag on the mouse pad during tracking; that tends to wear on the heal of the hand. It's worth a try.

While this can serve you as your alternative mouse this product doesn't provide the accuracy needed for modern gaming or fast enough to support quick rotation. Buy it only if you are planning to use it for office and low intensity works. Yet even that's your purpose, you still are paying way too much for just a 10 bucks quality mouse that's just shaped differently

I purchased this mouse because of carpal tunnel syndrome and has been using it for 6 months...Pro: it did alleviate my carpal tunnel pain and i was able to work normallyCon: after only approx 6-7 months of use, it no longer works properly. My mouse is not being detected by my computer despite the red signal light on the usb and the laser light on the mouse being lit.

conceptually, its not bad, but it has one fatal flaw, there is only one physical button under your thumb, which can be rockered left (for left click) or right (for right click). There is no way to hold the right button while activating the left, as many software programs assume this ability.So, for straight vanilla usage, it works, and it may help save your wrist, but I can't use it with about 1/3 of my normal programs.

This is for elderly people who doesn't move their wrist very well. If you try to use it to scroll or point any web link it will frustrate you. It is very inaccurate and because it forces you to use your arm it's very cumbersome. Afterawhile it hurts the shoulder more than the arm so it's not really well thought out. Too slow, inaccurate, and tracking is a bit jerky because it needs your arm to precisely navigate.

update: I ended up tossing mine in the junk drawer. It was just too difficult for me to use comfortably. |I've been using this mouse for about a week now. I use a mouse all day long. I've used lots of different kinds of mice to alleviate finger pains. I didn't buy this one to alleviate any carpal tunnel pains rather I bought it because my index finger was really sore at the last knuckle from left clicking all day long. Here's what I really like: the single button at the top of the stick that does both left and right mouse clicks with the thumb is pretty slick (no more sore knuckle). What else do I like? Not much, by comparison to a regular mouse. Not having a roller wheel is practically a deal breaker. Instead of the wheel, there is a pistol grip style button that is hard to reach and awkward to squeeze. Reaching for the joystick style pointer takes a little re-training, too, because it's taller. Finally, using this as a pointer takes a lot more movement. I wouldn't be able to use this with a mouse pad because it takes a lot of space to maneuver the pointer. Occasionally this sticks to the desktop. If you don't do a LOT of computer usage and are experiencing a lot of pain because of a mouse, this is probably a tool worth trying. It is definitely a pain relieving tool for me. There is a lot of downside to making this a workable replacement over a standard mouse. I am trying still to decide if I can live with what I don't like.

This design was great for wrist, elbow, arm pain. I used it constantly for a week. I expected it would take some getting used to as most people aren't used to the subtle motions involved with this grip compared to a normal mouse. That aside, I would not recommend this product for anyone who does complex things like surf the internet or work a spreadsheet. The button configuration is clunky and not intuitive. For some reason they decided that the large finger button on the side would be both the "hold for scroll" function, which then requires you to move the entire mouse to scroll, AND if you hit it quickly, it goes to any hyperlink you might have the cursor resting near. I'm sure there are software patches and settings I can mess with. I don't have the time or inclination to waste my time "discovering" how to set the mouse up. Bottom Line: It didn't have a scroll wheel and that alone made it not worth it. I returned it.

I was really happy with the product when I first got it. It did solve my wrist problem, but opened a door to another problem. After using this mouse for a month I started feeling pain in my fingers. I noticed that im gripping the mouse a little harder because of the shape. This isn't an end all solution mouse.

It was OK. Much better then a normal mouse, but I found cheaper ergo mouses that were much more comfortable. I found that the thumb rest area was odd fitting, but this may be because I have small hands. I found it cumbersome that I could not place my pinky on the desk to help control the mouse movements (this may sound crazy, but you notice these things when sitting at a computer for 8 hours a day). Also, my mouse would not work unless it was plugged into the computer, but this may have just been a faulty mouse. The glowing light looks nice, but overall I was much better off with something cheaper and smaller.

After 2 full months of ownership, the back mouse button switch has already degraded. Clicking it a single time will send 1-3 click messages. Low quality switches in this mouse.

The mouse has a momentary delay intermittently which is very annoying. I did not find it very comfortable. I returned to for the delay.

Limited scrolling functionality in some programs...proved to be the downfall of tangos product :( Had to return.

The third button that is supposed to be for scrolling, doesn't do anything. There is no scrolling function on this mouse.

This is why I should read more reviews before buying.I wanted to try a bunch of different mouse devices to alleviate a little wrist strain. I bought this, a trackball, and a few ergonomic 'vertical' mice.This one is just a no-go. No scrolling function in Chrome or Internet Explorer. Which is 95% of what I do.

Use of this mouse gave me De Quervain's Syndrome. This mouse is VERY far from being ergonomic. I haven't used the mouse for many months now and I am still in pain from my short time using this mouse.

I purchased this for my mom because she has arthritis. This mouse isn't for people with serious arthritis like my mom. This mouse requires intricate thumb function to use the left and right buttons and people like my mother will have a very difficult time using the thumb buttons.I had to return it because she was unable to use the thumb buttons at all. If the buttons where elsewhere on the device I think it would work better.

First, this product is very difficult and impractical to use. Whatever speed you can work with on a regular mouse, this is 4-5 times slower (for example, if a task takes 1 second on a regular mouse, it will take 4-5 seconds on this mouse). It is so slow and impractical that you will abandon it after a few minutes of use.Second, I purchased this product thinking the joy stick has a joint and you keep the mouse in one, idle positions and push the stick in different direction and move it (like those helicopter commands). There is no moving joint. It is FIXED so you have to move the entire actual thing around. It is not a light mouse to move.Third, moving around is not so much the problem. The real problem is HOW MUCH YOU HAVE TO MOVE IT just to move the mouse pointer across the screener. You will have to get an Extra-Large mouse pad because will not fit on a regular mouse pad; it has to be moved at least 8 inches just to move the pointer across the screen.Fourth, it feels really awkward and unnatural to use.Fifth, 3M does not even offer a specific driver for this mouse. It does not come with a CD and all sorts of Google searches did not yield a legitimate driver software so 3M has not released one.CONCLUSION: In short, you will be moving this mouse over large distance just for simple tasks. It takes 4-5 longer to use than a regular mouse to use, both because of the distances and because it is awkward and unnatural.It's also over-priced relative to what you get. I really don't recommend it at all.

The grip on this device is not good. I always feel like it is going to slip out of my hand when I use it. Now, after only three months use, the wheel is clicking like it's showing signs of wear already. Very frustrating.

DO NOT BUY

Mouse works great and feels better than Evoluent. The problem is that it wears pretty quickly. It's been less than a year and it started acting weird. The left button (mostly used) started double clicking itself. Okay, that's fine. Hardwares are expected to break down.

I contacted the company for repair since it is still under warranty, but I haven't heard back from them even after three emails and two weeks waiting.

If you are okay with using it for just one year, go ahead. Otherwise, save your money.

Doesn't ergonomically fit at all. Very uncomfortable.

I had an issue with the mouse skipping. After contacting the seller I discovered that if I turn it off for about 10+ seconds and then turn it back on again it started working well again. However, this appears to not always work. The mouse skips too often for me to use regularly. I'd like to return it to get a replacement or refund.

I design websites for a living so I have Windows, Mac and Linux systems. Mouse works on Windows but not on Mac. I have a sucky Evoluent mouse with intermittent bluetooth problems (drops connections) which I replaced with a USB Chinese knockoff that works well. This mouse does not work on Mac for either bluetooth or corded use. Work on Windows for both. Wasted my money again.