Ergonomic Wireless Mouse with USB Receiver for PC Computer Laptop and Desktop Ergo Mouse Vertical with Silent Clicks Long Battery Life Up to 1600 DPI & 1 AA Battery Powered Black

Ergonomic Design: The ergonomically vertical handshake position reduces muscular strain and the pressure on your wrist while your thumb is positioned comfortably on the thumb rest.
Plug and Play: Reliable wireless connection using a plug-and-play USB dongle wide working range of a radius up to 32 feet no additional driver needed. Comfort Shape for Medium or
Large Grip:
(Dimensions: 11.8 cm/ 4.6 in* 7.5 cm/3in* 5.8 cm/ 2.2 in)The ergo mouse can help you work better and faster with a perfectly-crafted full-size shape designed for the large palm (even over 7.5 - inch palm). Ultra-Quiet Clicks & Well-Placed Thumb Controls: No more annoying click noise to create better quieter environment for you and those around you. Create and work more intuitively and effortlessly with the ideally placed front and back buttons.
Premium Long-Lasting Battery Life: Only one AA battery needed it can work up to 16 months thanks to auto-sleep power saving mode and on/off switch button.
Note: The battery life may vary based on use and computing conditions.