RAPOO XK200 Bluetooth Keyboard (Surface Pro version)  Designed for Surface 3/4/5/6/7  Bluetooth 5.0  Membrane  Touch pad, Abundant 12 touch gestures  Scissor key structure  5 Million times of key lifetime  Multimedia hot keys  Rechargeable Lithium battery 35 hrs battery life/full charge, Standby 100days.  Slim and Durable  Dimension: 297x218x6mm