Features: 1.[Detachable and Rotatable]: The tablet keyboard case is detachable, can be rotated 720 degree, can be used in landscape and portrait screen, keeping the device away from collision and scratches in all aspects. 2.[Bluetooth Connection]: The detachable keyboard case has a wireless Bluetooth connection with a wireless distance of up to 32.8ft, which can meet the mobile phone and tablet and other devices to move at will. 3.[Wide Application]: The rotatable keyboard case is suitable for a wide range of devices, including the 10.9 inch for IOS Air4 and 10.9 inch for IOS Air5. 4.[180mAh Battery]: The wireless keyboard case has a built in 180mAh lithium ion battery, which can be used for a longer time after charging, no need to worry about the battery running out. 5.[Durable]: The bluetooth keyboard case is made of durable synthetic leather and PC material, and the back is made of upgraded acrylic 5.0, which is hard and does not deform. specification:Item Type: Detachable Rotatable Keyboard Case Material: Synthetic Leather, PC Connection: Wireless Bluetooth Wireless Distance: 32.8ft Battery Type: 180mAh Lithium ion Battery (built in) Applicable Devices: For IOS Air4 10.9inch For IOS Air5 10.9inch PackageList: 1 x PC Case 1 x Leather Case 1 x Keyboard 1 x Data Cable