TeckNet Wireless Bluetooth Keyboard for iOS (iPad Air 2 / Air, iPad Mini 4 / Mini 3 / Mini 2 / Mini 1, iPad 4/3 / 2, iPad Pro), Windows, Android 3.0 and Above OS The super-slim profile (4mm thin) and cord-free connection, this compact keyboard allows you type with more comfort while taking up less space. Matte finish low-profile keys ensure smooth and quiet typing. Your most-used shortcuts, multimedia and other operations start at the touch of a button. Broad Compatibility: Use with all 3 major operating systems (iOS, Android, and Windows). Long battery life with auto-sleep and battery life indicator allows up to 2 years between battery changes Automatically connects to your last-connected device. 18-month warranty and lifetime technical support