Wireless Bluetooth Compatible Keyboard --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. Mute button for smooth typing. Pen holder & Built-in Kickstand -- 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 ) Z Fold4 case can turn into a tablet in seconds with the Kickstand ,instantly enjoy the big screen visuals.The new design of the phone case, both vertical and horizontal can be placed. Detachable Bluetooth Keyboard Case & Thin Shell Membrane -- Galaxy Z Fold4 Case equipped with a Detachable and rechargeable Bluetooth Keyboard. Chocolate mute button, smooth typing, double the efficiency. Galaxy Z Fold4 Cover is an Ultra-thin phone case come with HD glass membrane,convenient to carry, to meet your travel, office and entertainment needs.