Portable Bluetooth Wireless Classic White Keyboard for 7.9" iPad Mini Built-in wireless Bluetooth 3.0. 7.9" iPad display stand for convenient viewing. Modern style designed for iPad Mini. Smart and simple iPad Mini holder. Built-in rechargeable polymer lithium battery which lasts for approximately 55 hours per charge. Continuous audio playback up to 4 hours, under voltage intelligent alarm sound. The fixed mounts around the keyboard can fix your iPad when you don't use it.