Feature: 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 Features: FN Combination Multimedia Function Features: ABS Chocolate Key Core, PU Leather. Package List: 1 x For Surface Go Keyboard1 x Power Supply Cable1 x User Manual Note: Shipped with Built in Battery