Wireless Bluetooth Keyboard 10Inch Lightweight UltraWide for Android IOS/Windows(Black ) Item Type: Wireless Bluetooth KeyboardMaterial: ABS+Iron Connection: Wireless Bluetooth 4.1 Effective Distance: Approx. 10meter / 32.8ft Control Scheme: CAPS Keyboard Life: About 5 million times Battery Type: Built-in 120mah lithium battery Uninterrupted Working Time: About 40 hours Standby Time: About 60 days Charging Time: About 4 hours How e: 1. Push the (OFF switch to ON) on the upper right corner of the Bluetooth keyboard, the blue light will light up, and the keyboard will start. 2. Turn on the tablet, find-Settings-turn on wireless and network-turn on Bluetooth-search for nearby devices-(search for the Bluetooth keyboard name) and click connect. 3. The tablet screen prompts (Bluetooth pairing request to enter the Bluetooth password XXXX to pair "Bluetooth keyboard"), enter the number displayed on the screen on the Bluetooth keyboard and press the Enter key, the connection is successful.