Tektalk Ultra-slim Mini Wireless Bluetooth Keyboard for Ipad Air, Ipad 2/3/4, Ipad Mini 1/2, Iphone, Imac, Windows and Android 3.0+ with Built-in Lithium Battery and Aluminum Body---white Color Bluetooth technologyPress one button to instantly toggle between typing on your Macbook, iPad, iPhone and other devices with bluetooth Rechargeable: No battery hassles. Use the USB cable to recharge, even while you type Operating distance: within 10 meters, bluetooth signal is weak in three meters away Convenient to carry: Pencil-thin, sleek profile (0.23in thin) easily stows in a backpack, messenger bag, or case. Package contents: Ultra-thin Keyboard Cover, USB power charging cable, User guide.