Color Red + Golden Brand CHEERLINK Quantity 1 Piece Material ABS Type Ergonomic Interface USB 2.0 Wireless or Wired 2.4G Wireless Optical Type Laser Resolution 800 / 1200 / 1600 dpi Bluetooth Version No Operating Range 10 m Powered By AAA Battery Battery included or not No Battery Number 1 x AAA battery (not included) Supports System Win xpWin 2000Win vistaWin7 32Win7 64MAC OS XLinuxAndroid 2.xAndroid 4.x Other Features Keys: 4; Wireless carrier frequency: 2402MHz2480MHz; Wireless channels: 16 channel-hopping automatically; Working voltage: 5V; Working current: 15mA; Tracing system: Optical Packing List 1 x Pen mouse 1 x USB receiver 1 x Holder base 1 x Chinese & English user manual