1. DIY Programmable: All keys are programmable. All key functions of a standard Windows keyboard can be set, and a complex combination of shortcuts can be realized with one key. 2. Dual Mode Connection: Supports both wired USB and wireless BT dual mode connection, detachable USB cable, easy to use. 3. Rotary Knob Function: It can not only be rotated to adjust, but can also be used as a button. The knob can be used to set zoom, pause, play, and other functions. 4. Small and Portable: Small and portable, you can carry it with you and effectively save desktop space. 5. Wide Applications: Suitable for offices, games, music, media, industrial control, laboratories, production line testing, and other fields. Item Type: Mechanical Gaming Keyboard Material: Acrylic Key Type: 9 Keys Mechanical Keyboard, 2 x Rotary Knobs (the knob can be used as a key to press) Applicable Equipment: Computer universal Battery Type: Built-in 200mAh lithium-ion battery 1 x Mechanical Gaming Keyboard 1 x Data Cable 1 x User Manual