Wireless Mouse,2.4g Vertical Ergonomic Usb,nano Receiver,rechargeable,adjustable Dpi 800/1200/1600/2400 (black) Scientific Ergonomic Design - This vertical mouse is designed for natural hand positioning and ultimate comfort. It relieves wrist and hand strain for right-handers. This wireless mouse will surely reduce your pain and stress hoursWide Compatibility - This ergonomic and comfortable mouse/mouse is compatible with Windows 10/8/7/Vista/XP, Linux, Mac OS X and all Windows versionsAdjustable DPI and one key to toggle - 800/1200/1600/2400 DPI resolution Optical tracking technology provides higher sensitivity than standard optical mice for precise and smooth tracking on a wide range of surfacesAuto-sleep function - This wireless mouse has an auto-sleep function that helps save power and extend battery life .Wireless technology makes this mouse work seamlessly for your computer or laptopLIGHTWEIGHT - With special treatment and advanced materials, this wireless mouse gives you more comfort and control Thanks to a special treatment l and advanced hardware, this wireless mouse gives you more comfort and control