Feature: 1. 9 Keys and 3 Knobs: This mini gaming keypad is designed with 9 keys and 3 knobs. Featuring RGB backlit and dustproof blue switch. 2. Knob Function: This programmable keypad has 3 knobs that can be set to zoom in and out, following song, the volume up, volume down, pause, play and other functions. 3. Multi Function: This mini keypad possesses programmable function, storage function and delay function. Type C to USB interface, plug and play without driver. 4. Delay Function: This 9 key gaming keypad also has delay function that can be set to a maximum of 6000 milliseconds. 5. Wide Application: This 9 key keypad with 3 knobs is suitable for office, games, music, media, industrial control, laboratory, production line testing and other fields. How to Use: 1. Small keyboard, open the custom software on the computer; 2. On the custom software, click the "key setting area" or "Knob setting area" (yellow area) and then click the key KEY1 to KEY12 or any key of knob 1 or knob 2 (green area) to be set. If selected, it will display red. 3. Click the function key corresponding to the simulated keyboard on the custom software, click download, download successfully, our custom keypad can be used. For example, I want to set the small keypad key 1 aWide Application: This 9 key keypad with 3 knobs is suitable for office, games, music, media, industrial control, laboratory, production line testing and other fields. Delay Function: This 9 key gaming keypad also has delay function that can be set to a maximum of 6000 milliseconds. Multi Function: This mini keypad possesses programmable function, storage function and delay function. Type C to USB interface, plug and play without driver. Knob Function: This programmable keypad has 3 knobs that can be set to zoom in and out, following song, the volume up, volume down, pause, play and other functions. 9 Keys and 3 Knobs: This mini gaming keypad is designed with 9 keys and 3 knobs. Featuring RGB backlit and dustproof blue switch.