Ultra-Portable Full-Size Virtual Keyboard
Compatible with any devices with these operating systems: iOS4+, Android 4.0+, Mac OS X 10+, Windows XP+, Blackberry 10 devices.
Bluetooth V3.0, HID Profile Ver 1.0;Built-in Lithium-ion Polymer Battery, Capacity: 660 mAH @ 3.7V; Works on all flat, opaque surface.