Suitable for compatible with Microsoft Surfaceicrosoft Surface Pro 3/4/5/6/7 wireless tablet Bluetooth 3.0 tablet keyboard laptop gaming keyboard Product presentation: Applicable models: compatible with Microsoft surfaceicrosoft surface pro3 / 4 / Pro5 / pro6 / Pro7 Bluetooth: Broadcom solution Features: ABS chocolate key core, made of PU leather, high-end atmosphere. Features: Fn combined multimedia function Applicable system: The keyboard size is specially designed for compatible with Microsoft Surfaceicrosoft Surface pro3 / pro4 / pro5 / Pro6 / Pro7. The keyboard supports all Windows systems, which can be used in many ways; Support protocol: Bluetooth 3.0 / 4.0 / 1.1 Connect the power supply through the USB interface for power supply Lithium battery capacity: 350 Working environment temperature: -10- + 55° Charging time: 2-3 hours Use time: 95 hours Standby time: 60 days Button life: 500 million times Effective operating distance: 10 meters Product size: 29.5 * 22 * 0.5cm Weight: 450g Use tutorial: 1. Turn on the bluetooth keyboard holster, and push the switch in the lower right corner from [0FF to ON]. At this time, the holster keyboard is activated, and the blue light will turn off after 3 seconds. 2. Then press the [link key]/[connect key] next to it, and the blue light is on, and the Bluetooth light flashes. 3. Turn on the tablet, find-Settings-Turn on wireless and network-Turn on Bluetooth-Search nearby devices-[Search for the Bluetooth keyboard of the protective case] and click Connect. 4. The tablet screen prompts [Bluetooth pairing request (enter the Bluetooth password XXXX to pair "Bluetooth keyboard"), enter the number displayed on the screen on the Bluetooth keyboard and click the Enter key, the connection is successful! Probably Package Size:38*25*1.5cm 465g Package list: 1*Bluetooth keyboard 1*Data cable 1*Instruction