StealthSwitch FS-4 Foot Pedal - Momentary Contact Switch Footswitch (3.5mm Mono Audio Cable, 6 Feet) Best selling plastic footswitch made using high-quality materials for added durability Non-skid pads provides added stability Rubber foot tread for non-slip switch activation and optimal comfort 6-foot cable with 3.5mm (1/8 inch) mono audio plug offers convenience and accessibility NOTE: The FS-4 is a footswitch only and requires a controller (like the StealthSwitch3) in order to connect it to a computer. Frequently used as a footswitch trigger for the StealthSwitch3 (also available on Amazon).