Features: 1.2 Knobs: This programmable keypad provides 2 knobs that can be set to zoom in out, following song, the volume up, volume down, pause, play other functions. 2.Programmable Design: All keys of this mini gaming keypad are programmable, you can set all keys function of stard for Win keyboard. 3.RGB Backlit: This gaming keypad is designed with RGB backlit. Blue switch provides better typing use experience. 4.Plug Play: This mini mechanical keypad is plug play. This keypad another keyboard can be simultaneously connected to one computer, no mutual interference will occur. 5.Widely Used: This 12 key keypad is suitable for office, games, music, media, industrial control, laboratory, production line testing other fields. Great helper for designers, video editors many other types of users. specification:Item Type: Mini Keypad Material: Acrylic Key Type: 12 Key Mechanical Keypad and 2 x Knob (Knob Can Be Pressed As a Key) Key Switch: Blue Switch Light Effect: RGB Backlit Applicable Equipment: Universal Type for Computer Battery Type: Inbuilt 500mAh Lithium Ion Battery PackageList:1 x Mini Keypad 1 x USB Cable