Compatibility: Designed specifically for Microsoft Surface Pro 7+(2021) / Surface Pro 7 (2019) / Surface Pro 6 (2018) / Surface Pro 5th Gen (2017) / Surface Pro 4 / Surface Pro 3, 12.3-inch tablets. This keyboard is not compatible with Surface 3, Surface Go series, or Surface Pro 8/9/10/11. Magnetic Attachment: Magnetic removable attach or detach. Easily switch between Surface Pro tablets and laptops. Multi angle adjustment to meet your different usage needs in various scenarios. Easy Setup: Connect via bluetooth. After completing the first bluetooth connection, it will automatically connect to the Surface when open the keyboard. NOT connect via magnetic attach. Type-C charging port: Charge keyboard externally with USB cable included. (NOT charged via magnetic attach). Equipped with 7-color LED backlight and 3 adjustable brightness options. Ultra thin and lightweight, easy to carry. Package contents: One keyboard, USB charging cable, user manual. We offer a 12-month warranty and quick customer service response within 12 hours. Keyboard Type Cover for Microsoft Surface Pro 7+ Pro 7 Pro 6 Pro 5 Pro4 Pro3, 12.3 inch, Ultra-Slim Bluetooth Multi-Touchpad Mouse Rechargeable, 7-Color LED Backlit