You can customize the button to achieve mouse, keyboard, string, and multimedia functions. USB + 2.4G + BT4.0 three-mode connection allows easy switching according to your needs. The mechanical switch is activated by the foot switch, providing a distinct tactile response and crisp feedback sound. Non-slip pads on the bottom prevent the foot switch from sliding during use. This product includes key mapping software compatible with supported systems, allowing configuration after setup. (Note: For Linux users, initial configuration must be performed on a compatible system before connecting the foot switch to your device for use.) Suitable for a wide range of applications including gaming, office work, machine control, testing piano keyboards, and rapid image saving. Model: FS20Pro Connection Mode: USB + 2.4G + BT4.0 Foot Pedals: 3 Switch Type: 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 Note: Light reflection and differences in display screens may cause slight variations between the color shown in the image and the actual product. Measurement error allowance: +/- 1-3cm.