TECKNET Ergonomic Mouse Wireless, Rechargeable Mouse Wireless Silent for Carpal Tunnel Right Hand, 2.4GHz USB Vertical Mouse Wireless for Laptop, 5 Adjustable 4800 DPI, Computer, MacBook, Desktop

The mouse is mostly good - light, functional, easy to use.It started having some lag after a few months that made it impossible to use. The company gave me a full refund. Can't ask for more than that. I now have another one that is working fine.

Most comfortable mouse yet. Great design .

Works well. I’ll upgrade to a more expensive one eventually. Only complaint is it’s super light so it doesn’t feel like is high quality but for the price…. You can’t beat it.

Ergonomic. I turn off the mouse when I am off my computer and have not yet had to charge it since purchasing. Got it on sale and it was way worth the price I paid. Also, very easy to change dpi speed. No complaints thus far.

I had a bad case of carpal tunnel developing. In less than a week, the twitches in my thumb have stopped, the pain in my wrist is down by half, and I'm not having to pop my wrist every five minutes. I expected switching to an ergonomic mouse to make a difference. I did not expect it to be so dramatic. I've since bought a second one for my work machine (the first went on my personal laptop). I may or may not stay with this brand, but I am sold on the ergonomic design.

So far, so good. It feels great in my hand and it was easy to plug in and use. Easy to get used to using.

This mouse is designed to be ergonomic. It does move the hand into a more natural position, which is more vertical than horizontal. This is good.It is important to understand that it may not at first feel natural to a user who has been using the more traditionally-shaped mouse for many years. But it will keep the carpel tunnel area of the wrist open and properly aligned with the forearm bone arrangement. This is key.The downside of it is that my hand is of medium size (when fitting a glove). As such, I found the 'depth' of the mouse to be made for larger hands.As a person gets older, he or she may experience a shake to the hand or fingers, such as when experiencing what is called 'essential tremor'. I found mine exacerbated by attempting to press the left mouse button, which in this case requires a squeezing between thumb and forefinger. This 'squeezing' motion is not natural from more traditional mouse usage, and must become an acquired taste. (Will it become a big contrast to hand and finger motion when using the keyboard?)Perhaps it will get better with more use. Time will tell.I also found that the operating system does not see a name for this device during the recognition of it when plugged in and being configured. Obviously a bit of an overlooked detail in the design of the USB receiver.The mouse has a built-in battery system, and is supplied with a good cable to charge it. Battery life is not yet known, but might become an issue if it runs down during use and must be recharged before continuing. Don't know if there is a warning light.Also, it has very poor instruction manual. There is supposed to be a way to change the DPI, but I could not figure how to do so.

Did the trick!