AirFox Ultra-Slim Mini Portable Backlit LED Wireless Bluetooth 3.0 Keyboard for Laptops Desktops PC iPad mini and Android Tablets Bluetooth 3.0 wireless transmission technology brings you 10-meter working range wireless connection without any interference and enables you to enjoy the freedom and comfort of wirelessness. The Keyboard applied BROADCOM Bluetooth Chip technology only consumes 25% of the power that other standard Bluetooth Chip require. Use your Bluetooth Keyboard for Standby 500 hours ultra-long time without the Charge. Seven kinds unique backlight color options,2 level brightness and auto sleep feature to maximize power usage.Chiclet Buttons Membrane Switch keyboard provides you with very comfortable and pleasing typing experience. Built-in 500mAh rechargeable Li-polymer battery provides 200 hours of effective usage time without backlit, extra long standby time up to 500 hours, on a single charge. Compatible three major operating system: iOS / Android / Windows. Works with all Bluetooth supported devices, even laptops and Tablet PC.