Features: 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. Specification: Item Type: Mini Keypad_x000D_ Material: Acrylic, PCB_x000D_ Application: Suitable for office, game, music, media, industrial control, laboratory, production line testing and other fields_x000D_ _x000D_ System Support: For Windows, for VISTA, for Linux, for Macos_x000D_ _x000D_ Button Life: Up to 50 million times_x000D_ _x000D_ Size: Approx. 102x57x38mm/4.02x2.24x1.50in_x000D_ Current Voltage: DC 5V/1A_x000D_ Operating Temperature: -10-50 PackageList: 1 x_x000D_ _x000D_ Mini Keypad 1 xConnecting Line Note: Tips: This software can only be run on for Windows system temporarily, as far as possible to download on computer PC, set the software to install, open the can be run directly, will automatically be stored in the chain plate set, again to support usb protocol such as for Linux, use on for MacOs systems (note that antivirus software to release for the first time, set the trust file)!!!!!