Features: 3-mode design, support BT 5.2, BT 3.0 and 2.4G wireless connection, easy to switch, free you from twisting cable. Adopt high-precision optical engine, fast response, accurate positioning. Ergonomic design, the mouse fits your hand, not easy to fatigue, comfortable to use. Silent button design, no need to worry about disturbing others. Built-in 500mAh rechargeable battery, long endurance time. Specification: Type: Optical mouse Color: Black/White/Gold/Rose Gold/Silver( optional ) Transmission distance: 10m(barrier-free) Battery capacity: 500mAh Packing list: 1 * Mouse 1 * Charging cable