About this item Ergonoal Designed Vertical Mouse ✍Our light up ergono mouse designed for right-handed neutral "handshake" wrist and arm positions, enabling smooth movements and less overall pressure to reduce wrist pain for long-lasting comfort. DPI Level 800-1200-1600-3200 ✍This rechargeable mouse ergono has 4 DPI.DPI Resolution Polling: 800-1200-1600-3200 to adjust the responsiveness of the ergono color mouse according to your needs or preferences. Optical tracking technology ensures higher sensitivity for precise tracking on a variety of surfaces. Thumb Button & RGB Light ✍ Use the back / forward button near the thumb area for best convenience.When you forget clicking the back button every time, simply click once and you'll jump to the desired page. Adjustable RGB light of this rgb vertical mouse , 6 different color conversion is suitable for use at night.Special design enhances your sense of use. Plug and Play & Removable Palm Rest ✍To avoid the trouble of being tied by wires or cables, Plug the USB receiver into your computer and it’s ready to use. In addition, this extra large right hand ergono mouse has detachable non-skid anti-sweat palm rest that reduces drag, making it easier to maneuver the ergono gaming mouse across the mouse pad. Compatible with Windows and MAC OS :✍ mouse for carpal tunnel compatible with Windows 7/8/10, XP, Vista 7/8, Linux, Mac OS. Fit for Notebook, PC, Laptop, Computer and other device.(NOTE : If the mouse can not work, please check if the y is out of power.Have any question, please feel free to contact us, we will provide 7*24 aftersale service.)