Specification: Item Type: Keyboard Brand: For Viboton Model: I8 Plus (3-Color Backlight) Interface: USB 2.0 Connection Type: 2.4GHz Wireless Features: Air Mouse, Ergonomics, Games, Remote Control Technical Support: Lithium Battery Applies to: For Andriod TV Box/Android TV/Google TV Box/Pad/PC/XBOX360 Charging Time: About 2 Hours Battery Capacity (MAh): 1020mAh DPI Rating: 800/1200/1600 Distance: Approx. 20 Meters / 66ft (Maximum) Operating System: For Windows 98/2000 / XP / Vista / 7/8, for Mac OS, for Linux, for Android Working Current: 10mA Standby Current: 6mA Package List:1 x Keyboard1 x Receiver (Built-in) 1 x Manual1 x Lithium Battery (Built-in) 1 x Data Line