Portable Mini 3.0 Wireless Keyboard, Handheld Remote Control Keyboard for PC Smartphone and More Black International Version - Product may not include US Warranty Built-in Bluetooth 3.0, Built-in rechargeable lithium battery Work with iPad/iPhone 4.0/5.0 OS/ Samsung Android/ Smart Phone/PC Super slim size with 49 keys This creative and easy-to-use Bluetooth Keyboard