Features: 5 buttons and 1 knobs: The product includes 5 buttons and 1 knob, allowing for more operational choices, adapting to various application scenarios, and meeting the different needs of users. Memory Function : The portable mini keyboard has onboards memory function. After being set up on Windows system, your settings are stored on the keyboard and can be used on system that support the USB protocol. Customizable function: This product has a customized button function, providing a more convenient and efficient operating experience. Compact design: The product adopts a compact design, suitable for placing on the desktop or using alongside other keyboards, saving space and providing an ergonomic grip experience. No Conflicts: There is no need resets the device when replacing it. No driver required, no conflicts between computer and multiple keyboards, easy to carry. Specifications: Item: Mini Keyboard Lighting:LED Number of Keys: 5-Key 1 Knob Material: ABS Cable: Usb Cable Size: approx 10cm 3.94in Color: As Pictures Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-2mm error due to manual measurment. Package includes: 1 Set Mini Keyboard