iRULU Universal Ultra-Slim Bluetooth Keyboard with Touchpad for All Android and Windows Tablets, Laptop Computers, Smartphones and Other Mobile Devices(10.1 Inch, Black) lightweight, easily stows in a backpack, messenger bag, or case, enabling you to enjoy the convenience of a full-size keyboard anywhere you like. QWERTY layout with hot keys, type quietly and effortlessly, compatible with iOS OS, Android, Windows, and all bluetooth-enabled tablets, laptops, and computers. NO AAA battery needed: Charging the Bluetooth Keyboard with a USB Charging Cable(not included). Using the American broadcom bluetooth 3.0 chip, 8 times faster than the Bluetooth 2.0, high speed connection and signal distance up to 33ft (10m). Package Contents: iRULU Wireless Rechargeable Bluetooth Keyboard,User manual.