Feature 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.Item Type: Detachable Rotatable Keyboard CaseMaterial: Synthetic Leather, PCConnection: Wireless BluetoothWireless Distance: 32.8ftBattery Type: 180mAh Lithium ion Battery (built in)Applicable Devices: For IOSAir4 10.9inchFor IOSAir5 10.9inch .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x PC Case1 x Leather Case1 x Keyboard1 x Data Cable