Features 1、This wireless bluetooth keyboard is especially designed for 12.3in for Microsoft Pro 7 / 6 / 5 / 4 / 3. 2、Allows for stable and safe connection to for Microsoft Pro for higher working efficiency. 3、The keyboard can be easily connected through the bluetooth, and very easy to carry for daily use. 4、Equipped with a touchpad, also has media control keys, full function keys, 7‑color LED backlight. 5、Guarantees the same speed and function of a notebook computer keyboard, very convenient to use. Specification Item Type: Wireless Bluetooth Keyboard Keyboard Type: American Keyboard QWERTY Model: 1089-D Material: ABS Lighting Effect: 7-Color LED Backlight Connection: Wireless Bluetooth 5.0 Effective Operating Distance: Approx. 10metres / 32.8ft Modulation Method: GFSK Working Voltage: 3.0-4.2 V Working Current: <8 mA Standby Current: <0.3 mA Sleep Current: <40 uA Charging Current:> 200 mA Standby Time:> 100 days Charging Time: 2-3 hours Interface Type: Type-C Battery Type: Built-In 550mAh Lithium Battery Sustainable Working Hours: >35 hours Lithium Battery Life: 3 years Keystroke Force: 80±10g Button Life: 5 million clicks Working Temperature: -10-+55 degrees Applicable Equipment: For Microsoft Pro 3/4/5/6/7 Package List 1 x Wireless Bluetooth Keyboard 1 x Data Cable 1 x User Manual