Portable Bluetooth 3.0 Keyboard for Surface Pro 3/4/5/6/7 Keypad with Touchpad U
Lithium Battery Capacity: 220mAh. Lithium Battery Life: 3 Years. Connection: Bluetooth-compatible 3.0 Standard Interface. Tablet Model: for Microsoft Surface Pro 3/4/5/6/7. The four-corner edging design provides daily protection for the screen.