Specifications: Small and ultra-slim, lightweight and portable to carry. Bluetooth connection, stable and fast connection within the distance of 10m, easy to use. Widely compatible with for iOS/Android/Windows system. Instructions (Use for compatible with iPad for Reference): Turn on the power switch, the power indicator light is on. Short press "Connect" (pairing button), the bluetooth-compatible pairing light flashes quickly, and the bluetooth-compatible keyboard is in the connection. Open the for compatible with iPad and click the "Settings" icon. On the "Settings" button, click the "General" item, enter the bluetooth-compatible settings, click "Bluetooth" to open the connection, for compatible with iPad will automatically search for available bluetooth-compatible devices. Discover the bluetooth-compatible keyboard, click "Connect". Type the password displayed on the screen via the bluetooth-compatible keyboard. The keyboard connection is successful, the code indicator is off, and the power indicator will be on until the power is off. Type: bluetooth-compatible Keyboard Material: ABS Bluetooth: 3.0+HS Wireless Distance: 10m Modulation Method: 2.4GHz Working Voltage: 3.0-5V Working Current: