1. The keyboard has an updated appearance design. 2. It is built on a platform with more powerful functions and lower power consumption. 3. After setting it up on a Windows computer, it can be used on Windows and some other systems. 4. Toggle switch: The wired toggle switch is used to lock and unlock the keyboard. 5. For the Bluetooth model, there is a Bluetooth switch. Notes: Custom settings may need to be made using the Windows system. This is a mini keyboard with custom functions. It uses a Type - C to USB interface, generally no driver is required, and it is plug - and - play. All key functions can be set on a standard Windows keyboard to achieve complex combination shortcuts with one key. The keyboard has a storage function. After setting it up on the Windows system, it can be used on systems that support the USB protocol (such as Linux and MacOS). It is relatively easy to operate and convenient to carry when connecting multiple keyboards. The knob can be set to functions such as zoom in/out, switch to the previous/next song, turn up/down the volume, pause, and play. It can be a good helper for auxiliary operations. Styles: Bluetooth model: It has a built - in battery. The RGB lighting effect can be used when connecting the USB cable, and the RGB lighting effect is off in the wireless state. Type: Customized small keyboard Color: Black Material: ABS + metal Dimensions: 120 x 57.5 x 38.5 mm Packaging contents: 1 keyboard 1 USB cable Only the above packaging contents are included, and usually no other products are included. Note: Light reflection and different displays may cause the color of the item to vary slightly from the actual one. The allowable error for size measurement is ±1 - 3 cm.