Feature: 1. Time Delay Function: You can change the button time delay setting of this DIY mechanical keyboard to meet more needs. It has a linkage with the system to enhance keyboard functions. You can open the folder, software, web address, automatic switch keyboard configuration and other functions with one click (only windows is supported). 2. Customized Any Scenes for Keys: This custom mechanical keyboard has a one-button game operation, music change and volume adjustment, multimedia control, fast forward and fast rewind, one-button password, one-button opening of web page, one-button opening for file, code copy and paste, and hierarchical changing for different keyboard settings. All key and knob functions can be customized. 3. You can set all the key functions of the standard Windows keyboard, one button to achieve the complex combination of shortcuts.Three 360-degree adjustable knobs can be used to set page turning, zooming in and out, up and down changing music, volume up and down, pause, play and other functions, as well as other required single key or combination key functions. It is easy to use. 4. this mechanical keyboard has a red shaft. It feels comfortable and . It' s not easy to feel fatigue for using red shaft. The pressure of red shaft is small. When you press it, it will be more relaxing. Lower noise makes quiet effect better. The shaft body can be replaced without welding, and the mechanical shaft body of hot swap can be inserted and used. 5. Mini and Wide Application: This customized key can effectively save desktop space. It also has a removable USB cable. You can connect a small keyboard (plug and play) and another keyboard on the same computer at the same time. They ' t interfere with each other. The multifunctional keyboard is suitable for office, home games, music, media, industrial control, laboratory, production line testing, and many other scenes. It is a good help for users such as designers and video editors. Specification: Application: Laptop Keyboard Standard: Mini Key Knob Language: English Operation Style: Mechanical Interface Type: Bluetooth Style: Mini, Gaming, Multimedia, Multifunctional Keyboard Package: Yes Backlight Type: MULTICOLOR Version: Wireless model Current voltage: DC 5V/1A Interface: type-c Battery capacity: 500mah (built-in battery for Bluetooth models) Key: 12 Knob: 3 Axle: Outeum Red Switch (Red axle) Indicator light: 1 charging indicator light, full charge turn green ON/OFF button: A-For Bluetooth models, the indicator is Bluetooth switch can use the for Windows//LINUX. For users, you must set the shortcut key in Windows before you can use it for computers. Material: Plastic+metal colour: Black Package Contents: 1 x Keyboard 1 x Data Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.