Heavy-duty industrial, steel footswitch made using only high-quality materials for added durability. ABS plastic foot tread for non-slip switch activation and optimal comfort;It provides a Bluetooth or USB interface. Weighted base with non-skid pads provides added stability,foot switch cover provides ample room for safetytoe shoes. Non-slip base pads prevent foot switch from sliding on smooth surfaces,internals employ heavy duty gasketto prevent water, oil, or dust intrusion. Widely used in musical instruments, multimedia, industrial equipment, wireless custom keyboard and mouse, mobile game shortcuts, etc. Specification: Bluetooth coverage radius10m Bluetooth versionBluetooth 3.0 Working current 3mA Stand-by time about 2 years Switch service lifeMore than a million times Support wire mode;include Bluetooth and USB interface Size: approx.300x162x36mm/ 11.81x6.38x1.42inch Size Chart: Indicator light instructions Red and Green Flashes: Matching Mode Red Flash: Return mode, indicating that the device is connecting to the last paired device. Green Flash: Indicates the normal transmission of data after the pairing is successful. Package Includes: 2 Piece Pedal Switch 4 Pieces AAA battery 2 Piece Android Line 2 Piece Certificate of Quality