1、Easy Installation: Simple operation, no conflict with multiple keyboards, Type‑C to USB interface, no driver, plug and play, easy to carry. 2、Shortcut: All key functions of the standard for Windows keyboard can be set to achieve complex combination of shortcut keys with one key. 3、Multifunction: One handed mechanical keyboard with storage and custom function, convenient and practical. 4、Knob Function: Knob can be set to zoom in and out, switch to the last or next song, volume adjustable, pause, play and other functions. 5、Wide Application: Mini keypad suitable for office, games, music, media, industrial control, laboratory, production line testing and other fields. Item Type: Mini Keypad Material: Acrylic, PCBApplication: Suitable for office, game, music, media, industrial control, laboratory, production line testing and other fields System Support: For Windows, for VISTA, for Linux, for Macos Button Life: Up to 50 million times Size: Approx. 102x57x38mm/4.02x2.24x1.50in Current Voltage: DC 5V/1A Operating Temperature: -10℃-50℃ 1 x Mini Keypad 1 x Connecting Line