Choose from Wired USB or Wireless option. 2.4GHz digital wireless transmission,operation distance is up to 10 meters. Portable and weight light, very convenient to carry and store. 800dpi/1200dpi adjustable cursor speed. Comes with DPI button for convenience of customization. Intelligent Power-saving technology, Power switch, the service life of one alkaline battery is up to six months. Built-in mouse memory, Intelligent connectivity, no code needed, plug-and-play. Ergonomically designed, comfortable grip. Estimated mouse size: Length 11cm, Width 6.8cm, Height 2.8cm