Applicable system: The keyboard size is specially designed for Surfac pro. The keyboard supports all systems. You can also use this keyboard to pair with other electronic devices with Bluetooth and systems, but pay attention to if it is used on other devices. The magnetic buckle of this product cannot be matched, it can only be used for Surfac pro; Make pro3/ Pro4/ Pro5/ pro6/ Pro7 Like a Laptop:The keyboard is physically attached to pro via magnetic like a laptop and the connection is though Bluetooth.After the Bluetooth is connected, mechanical keys and Presspad you like using a laptop.(This keyboard doesn't fit for go) Slim and compact, yet performs like a traditional, full-size keyboard.Functional Media Keys and Presspad: Enjoy the easily control of your pro,with the Presspad and the media hot keys,Keyboard with 7-color backlight night light effect.Charge up in 2 hour and enjoy 95 hours of uninterrupted use.Product Name: Wireless Keyboard / Bluetooth Keyboard.Applicable models: pro3 / Pro4 / Pro5 / pro6 / Pro7 Use tutorial:1. Turn on the Bluetooth keyboard and push the switch in the lower right corner from [0FF to ON]. At this time, the keyboard starts, and the blue light shows off after 3 seconds.2. Then click the [Link key] / [connect key] next to it, and the blue light is on and the bluetooth light flashes. 3. Turn on the tablet and find-Settings-Turn on wireless and network-Turn on Bluetooth-Search for nearby devices-[Search the Bluetooth name of the protective case (Bluetooth keyboard)] 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 press the Enter key, the connection is successful! Bluetooth Keyboard: Mechanical keys and extra-large trackpad make pro more useful with typing, navigation and control. Bluetooth: American Broadcom solution Features: ABS chocolate key core, using PU leather, high-end atmosphere. Functional characteristics: Fn combined multimedia function Keyboard features: 7-color backlight night light effect Applicable system: The keyboard size is specially designed for pro3 / pro4 / pro5 / Pro6 / Pro7. The keyboard supports all systems and can be used in many ways; Support protocol: Bluetooth 3.0 / 4.0 / 1.1 Charging interface: connect to the power supply through the USB interface for power supply Lithium battery capacity: 450MAH Working environment temperature: -10- + 55 Celsius Charging time: 2-3 hours Use time: 95 hours Standby time: 60 days : 500 million times Bluetooth effective operating distance: 10 meters colour:black Material:PU+ABS size:29.5*22*0.5CM Package Contents: 1 * Wireless Bluetooth Press keyboard 1 * USB charging cable 1 * instruction manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.