Feature: 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. How to Use: 1. Small keyboard, open custom software on the computer; 2. On the customized definition software, click (yellow area) "key setting area" or "knob setting area", and then click the key key1-key12 to be set or any key (green area) of knob 1 or knob 2; when selected, it displays red. 3. Click the function key corresponding to the simulated keyboard on the customized software, and click download to prompt that the download is successful, and our customized keypad can be used. For example, I want to set the keypad key 1 as the shortcutWide Application: Mini keypad suitable for office, games, music, media, industrial control, laboratory, production line testing and other fields. 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. Multifunction: One handed mechanical keyboard with storage and custom function, convenient and practical. Shortcut: All key functions of the standard for Windows keyboard can be set to achieve complex combination of shortcut keys with one key. Easy Installation: Simple operation, no conflict with multiple keyboards, Type-C to USB interface, no driver, plug and play, easy to carry.