Features: 2.4G wireless transmission, up to 20m operating distance, stable connection, strong anti-interference performance. Three-color backlight, you can use the wireless keyboard without turning on the lights at night, and will not disturb others. You can change the backlight color according to your needs. Equipped with high sensitive touchpad for easy and accurate operation, better match the different sizes of screen, convenient to use. Small and light design, easy to carry, not occupy spaces, convenient for you to use anytime and anywhere. Plug and play, no need to install software, just put the USB receiver at the back of the keyboard, and the magnet will suck the receiver tightly to prevent missing. Built-in large capacity rechargeable lithium battery for long time use, easy charging. It is compatible with Windows 98/2000/XP/Vista/Win7/Win8/Mac OS /Linux/Android systems, suitable for desktop, laptop, Smart TV, network player, X-BOX 360, TV Box, projector, etc. Specification: Name: Wireless keyboard Color: Black Material: ABS Language: Engligh/Russian/German/Spanish(optional) Connection type: 2.4GHz wireless Wireless range: Up to 20m Working current: 10mA Standby current: 6mA Sleeping current: 0.01mA Battery: 1020mAhlithium battery Suitable for: Android TV, Google TV Box, Pad, PC, XBOX 360 Operating system: Windows 98/2000/XP/Vista/Win7/Win8/Mac OS /Linux/Android Item size: 15.3 * 9.6 * 2cm /6.02 * 3.78 * 0.79in(L * W * H) Item weight: Approx. 97g /3.42oz Package size: 19 * 11.3 * 3cm /7.48 * 4.45 * 1.18in(L * W * H) Package weight: 161g /5.68oz Packing list: 1 * Wireless Keyboard 1 * User Manual