Feature:1. Specially designed for lefthanded users, the mouse can reduce muscle strain and even eliminate the damage caused by using traditional computer mice for many years.2. 3 levels of DPI (800/1200/1600) meet general and gaming needs. Equipped with advanced optical engine, the product can provide faster response speed, smoother tracking and more accurate movement.3. With an independent on/off button at the bottom, the mouse can effectively save energy.4. The size of the vertical mouse will fit perfectly in the palm of your hand. And it's easy to use.5. 2.4GHz wireless technology can provide a reliable connection without any interference within a 360degree range within 10 meters. Enjoy fast data transmission with the convenience of wireless technology.6. Widely compatible with for Windows 2000/ Windows XP/ Windows 7/ Windows Vista/ Windows 98/ Linux/ Windows ME/ Windows 8/ Windows 10, etc.Specification:Item Type: Wireless Left Hand MouseProduct Parameters:Type: Optical mouseConnection with Computer: WirelessOptical Resolution: 1600dpiTransmitting Power: +5db maximumNumber of Keys: 6 keysWireless Transmission Frequency: 2.4GhzAdjustable Resolution: 3 gears and belowBattery Specification: 500mAhHow to Use:1. Turn on the mouse switch2. Insert the wireless usb head into the computer interface3. Mouse can be used.Package List:1 x Mouse1 x User Manual1 x USB Head1 x Charging Cable