Portable Wireless Keyboard for Microsoft Surface Pro 3/4/5/6/7/7 Plus BT Type-c 7 Colors Backlight 78 keys Touchpad Keypad

Good luck with your favorite purchasesHigh-concerned chemical : None Part Number : Keyboard Compatible Brand : Lenovo Brand Name : Shunmaii Origin : Mainland China Certification : None Portable Wireless Keyboard : Type Cover Keyboard Trackpad Keyboard : Touchpad Keypad Origin : Mainland China Product size : 290.00x226.00x7.00mm,11.42x8.9x0.28inch Keyboard type : membrane keyboard Number of keys : standard 78 keys Backlit keyboard : LED Connection method with computer : Bluetooth-Compatible Applicable models : Compatible with Surface pro3/4/5/6/7/7Plus Material : ABS+PU fabric + microfiber substrate Key life : 5 million times Wireless distance : 10 meters Multiple modes : single channel Charging interface type : Type-c Charging cable length : 70 mm Battery type : polymer lithium battery Charging time : <3H Compatible system : Windows Standby time : 100 days Usage time : 50 hours