Surface Pro keyboard enhances the fixed connection with Surface Pro, delivering high-performance functionality similar to a laptop. One of the most portable mechanical keyboards available, it combines the speed and features of a notebook computer keyboard with convenient usability. Includes QWERTY layout with full row of F1-F12 keys, Windows shortcuts, and media control keys for easy navigation. The large touchpad allows smooth cursor control using finger gestures. Offers a tablet-like experience when the keyboard cover is folded back.Specifications: Effective operating distance: 10 meters Modulation method: GFSK Working voltage: 3.04.2V Working current: less than 2.5mA Standby current: less than 0.3mA Sleep current: less than 40uA Charging current: greater than 200mA Standby time: more than 100 days Charging time: 23 hours Lithium battery capacity: 350mAh Sustainable working hours: 35100 hours Lithium battery life: 3 years Button force: 80 10g Button life: 5 million clicks Working temperature: -10C to 55C