Detachable Waterproof Rechargable Wireless Keyboard- This Ipad Pro11 Keyboard Is Easy To Attach To Or Remove From The Magnetic Cover Case, And Instantly Connect Via Bluetooth To Ipad. You Can Take Keyboard Case To Anywhere Anytime After 2-3 Hours Full Charged With Built-In Long Life Rechargeable Lithium-Ion Battery. With High Quality Waterproof Keyboard Conductive Film, Keyboard Can Work Better Than Others.