Tenergy Bluetooth 3.0 Wireless Slim Keyboard - WHITE - (Designed for PC, Tablet, Smartphone and More) Low Profile Keys- Large, precise touch keys provide quiet, crisp, responsive feel when typing. Bluetooth 3.0 Wireless  Designed to work with latest tablets, smartphones, and any Bluetooth 3.0-enabled devices. Uses 2xAAA Batteries  700-hour continuous-use battery life and automatic sleep mode allows up to half a year between battery changes Designed to work with iPads, tablets, smartphones, and many other bluetooth devices Ultra-Compact Design  Stylish, thin design readily fits in carrying cases for maximum portability and mobility.