Features: 1.Scope of Application: For Surface Go keyboard is designed for Microsoft Surface Go 3 (2021), for Surface Go 2 (2020), for Surface Go (2018) tablets 2.USB C Rechargeable: The keyboard is rechargeable via USB C. The built in rechargeable lithium battery can be used for 100 hours of continuous use after 3 hours of charging. Standby for 100 days per full charge 3.Wireless BT Connection: Wireless keyboard uses wireless BT4.0 technology to provide high speed connectivity and up to 33 feet/10 meters signal range 4.Convenient and Practical: The magnetic BT keyboard can be used connected or detached and offers two typing angles. Lightweight and portable, keyboard automatically enters sleep mode after 10 minutes of inactivity 5.Ergonomic Design: Scissor switch keyboard and ergonomic design bring you a pleasant typing experience. Supports up to 3 million keystrokes per key, with built in touchpad specification:Item Type: For Surface Go Keyboard Product Material: ABS,PU Battery Type: Lithium Ion Battery 402030 (built in) Battery Capacity: 350 Mah Suitable For: For Microsoft Surface Go 3 (2021), for Surface Go 2 2020, for Surface Go 2018, Keyboard Support Full Win System Support Protocol: BT3.0, BT4.0, BT1.1 Wireless Distance: About 10meters/10.9yd Charging Interface: USB C Functionality FN Combination Multimedia Function ABS Chocolate Key Core, PU Leather PackageList: 1 x ForSurfaceGoKeyboard 1 x Power Supply Cable 1 x User Manual NoteShipped with Built in Battery