Amazon.com: Pinhen Type Cover for Microsoft Surface Pro 7 / Pro 6 / Pro 5 / Pro 4 / Pro 3, Business Ultra Slim Portable Wireless Bluetooth Keyboard with Touch Pad and Built-in Rechargeable Battery,Black: Computers & Accessories

https://www.amazon.com/Pinhen-Surface-Bluetooth-Detachable-Removable/dp/B01M3RLDFS