DeluxWireless Ergonomic Mouse, 2.4G Rechargeable Vertical Mouse with USB Receiver, 6 Buttons, 3 Gear DPI and Removable Palm Rest, Reduce Muscle Strain for PC Laptop Computer (M618G GX-Black)

Item is responsive however scrolling up and down is not available at thumb

My old mouse was acting funny so decided it was time to buy a new one. I saw something about ergonomic and for the first time, I was made aware of how the traditional mouse strains the wrist joint. I was having a major problem with numbness down my hand as I worked on the computer. The light bulb came on and I decided I had to try one. I read some reviews and went with this one. I have a smaller hand and it had a small size option. I've been using for a month or so. No more numbness! Being a creature of habit, I was worried I wouldn't adapt to the different button placement, but it really was logical and easy. I did decide to remove the optional circular lip (wrist rest) as it made it harder for me to roll the mouse around. It kept 'catching' as I tried to slide. It works great for me without it and still no numbness. I was also concerned about having to charge it, but the charge seems to last a really long time and now I like the idea of not going through disposable batteries. I give this a big thumbs up! Wish I'd known about it sooner.

Hard to use, i don't recommend. After 2 months the cursor started to move and vibrate even when the mouse is still.Very bad quality.

Another review on this site mentioned lag and inaccuracy, and I experienced this at first too. I improved it by using a mousepad, but eventually I realised that there are 3 pieces transparent film / stickers on the underside that are meant to be removed!After removing them, the mouse is able to glide along surfaces smoothly, getting rid of that feeling of lag / inaccuracy. I still recommend using it with a mousepad, but it works as expected now.The instructions could've been more clear about removing the film, or it needs some little tabs on them to make them more obvious that they should be removed.

Se siente bien al agarrar, tardé un par de días en acostumbrarme pero definitivamente lo seguiré usando, tengo la mano grande y se acopla bien. La base que se le puede pegar no me gustó mucho ya que sentía que me quitaba movilidad pero pues con quitarla es suficiente