You can customize the button to achieve mouse, keyboard, string, and multimedia functions. USB + 2.4G + BT4.0 three-mode connection, easy to switch according to your needs. The mechanical switch is triggered by the foot switch, there is a distinct sense of paragraph when walking, and a crisp sound. With non-slip pads on the bottom, no need to worry about the foot switch slipping. This product provides key definition setting software based on the system, which can be used on various systems after adjustment. (Note: If you are using for Linux or , you must first configure it on for , then plug the foot switch into your device and run it to use it.) Widely applicable, you can use it for gaming, working, controlling machines, testing piano keyboards, and quickly storing images. Model: FS20Pro Connection Mode: USB + 2.4G + BT4.0 Foot Pedals: 3 Switch: Mechanical Switch Battery Capacity: 230mAh Operating Voltage: 5V Operating Current: 3mA Color: Yellow & Black Material: ABS Package Contents: 1 x three-pedal switch 1 x data cable 1 x receiver 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.