Keyboard American Bluetooth 3.0 Ultra Thin Smart Case Cover whit Stand for Apple iPad Air (Carbon Black) Bluetooth version 3.0,Compatible with ipad air with metal flip Light weight, quiet keystrokes, waterproof and dust-proof, iPad display stand for easy viewing Simple design and concise appearance are perfectly match with Ipad air. Make the ipad into MAC. The best option for both business and entertainment. Unique car slot design, make ipad vertically, and the angle adjustment as the case may be. Experience flowing input freely with professional keyboard design, use ipad work anytime and anywhere. Built-in rechargeable battery Lithium pllymer 80mAH, lasts for long time per charge, Energy saving keyboard sleep mode