Galaxy Z Fold 4 Detachable and rechargeable Bluetooth Keyboard. Smooth typing, double the efficiency,convenient to carry, to meet your travel, office and entertainment needs. Durable, safe and environmental protection, to give you the perfect experience of light luxury and elegance. The keyboard is magnetically separated from the shell and connected by magnetic attraction, and the keyboard can be taken out from the shell. No need to replace the Bluetooth keyboard USB charging. You can remove the keyboard if you don't need it. Built-in high-capacity battery, long battery life. Bluetooth keyboard, wireless connection. For Samsung Galaxy Z Fold4 case, the keyboard has a built-in pen holder and top pen slot for easy use and placement. There is a soft premium plain leather inner case that protects your device from drops and scratches with a delicate touch. (pen not included!)