Bluetooth 3.0 Wiress Keyboard 1. Material: ABS plastic 2. Number of keys: 78 keys 3. Metal texture spray paint 4. Wiress distance: 10 meters 5. Has multimedia function keys 6. Connection method: bluetooth 3.0 wiress 7. Without Bluetooth adapter, without battery 8. Use 2 AAA batteries (not included in shipment) 9. Applicable system: iOS, Android, Windows 10. Suitable for tablets, mobile phones, and laptops with Bluetooth 11. Dimensions: 120 x 285 x 18mm 12. Weight: 290gOperation guide:- Load 2 AAA batteries and close the battery compartment cover- Toggle Switches- Press and hold the small black dot CONNECT for 5 seconds, the blue light on the front of the keyboard flashes- Turn on the device Bluetooth, search- Find "Bluetooth Keyboard" on the device and click to connect- According to the information prompted by the device, enter the corresponding number on the Bluetooth keyboard and press the keyboard enter key, the connection is successful