OverviewHighlights 84-key layout with most common buttons. The combination of modern and ancient, the classic round key design of the typewriter expands the finger contact surface. Compatible with Windows, iOS, Android and other common systems, suitable for mobile phones, tablets, and other devices.Specification General Brand: AjazzModel: 308iType: BluetoothKeyboard Color: ColorfulSpecification Keycap Material: ABSPower Type: Built-in batteryInterface Type: BluetoothBluetooth Version: American Broadcom 3.0Number Of Buttons: 84 keysBattery: 2 x AA battery (not included)Transmission Distance: 10 metersWorking Time: One week (8 hours per day)Standby Time: One month Weight &Size Product Weight: 0.50 kgPackage Weight: 0.65 kgProduct Dimensions: 32 x 30.5 x 13.7 cmPackage Dimensions: 34.6 x 15 x 3.5 cm Package Contents 1 x Keyboard 1 x User Manual