Verbatim Bluetooth Wireless Folding Mobile Keyboard - Black 97537 Bluetooth technology. Compatibility with: iPhone, iPod Touch, iPad, iPad2, Samsung Galaxy Tab, Motorola Xoom, Blackberry Playbook, Android Tablets and any Tablet with HID Keyboard support and Bluetooth connectivity, some restrictions may apply Thin-profile keyboard folds and stores in carrying case for maximum portability. Requirements: Bluetooth Wireless, HID Keyboard Support (iOS, Android, Blackberry/QNX, HP/WebOS or otherwise), Contents - Keyboard, Carrying Case, iPhone Stand, (2) AAA Batteries, Quick Start Guide Limited One Year Warranty iOS4 or Higher (iPhone, iPad, iPad2), Android 3.0 or higher (Android Tablets) Closed size: 6.25" L x 4" W. Open Size: 12.5" L x 4" W.