1.2.4G Mouse Ergonomic designed to remit and prevent carpal tunnel syndrome. 2.Optical laser technology for precise control,Built-in rechargeable lithium battery, so you do not change the battery. 3.Wireless receiver, can be received within 10m 4.Gaming mouse have 2400DPl high-precision engine, accurate experience Comfortable grip,Enjoy 24G wireless technology, ffice casual games applicable. 5.L/R mouse buttons, 2 thumb buttons, and a clickable scroll wheel , dpi button. Rated voltage / current: 3.7V/18mA Power supply:Built-in rechargeable lithium battery (600 mAh) Number of keys: 6 keys Optical resolution: 800DPI;1600DPI;2400DPI Work: Photoelectricity Button click life: 5 Million times System requirements: Windows 98 / Me / 2000 / XP / Vista / Win 7 / Win8 /10/Vista Mac OS or latest