1、Customized Functions: Mechanical keyboard can be customized with a total of 3 keys and a knob in the customizable part, each knob can be customized with clockwise, counterclockwise, and pressed functions. 2、3 Keys Design: PC Keypad is designed with 3 keys, the number of keys is reasonable and suitable for various programming settings. 3、Programmable: DIY programmable keyboard all keys are programmable, you can set for Windows keyboard standard all key functions, one key to achieve the complex combination of shortcut keys. 4、Type C Wired Connection: 3 key mini keypad supports Type C wired connection with detachable USB cable, easy to use, compact and portable, effectively saving desktop space. 5、Applicable Scenarios: 3 keys one handed keypad is suitable for office, game, music, media, industrial control, laboratory, production line testing and other fields. Item Type: USB Mini 3 Key Keypad Material: Acrylic, ABS Number of Keys: 3 Keys Custom Knob: 1 Switch: Mechanical Blue Switch Connection: Type C Wired Applicable Models: Computer General Purpose 1 x Keyboard 1 x Charging Cable