Ultra Compact: Takes up only two thirds the space of a traditional keyboard (11.3 x 5.0 x 0.5in).6-Month Battery Life: Rechargeable lithium battery with an industry-high capacity of 800mAh lasts for 6 months between charges (based on 2 hours non-stop use per day).Comfortable & Intuitive: Low-profile, matte finish keys enhance your typing experience. Automatically connects to your last-connected device.Broad Compatibility: Use with all four major operating systems (iOS, Android, Mac OS and Windows).Package contents: Anker Ultra Compact Bluetooth Keyboard (US keyboard layout), 2.3ft Micro USB charging cable