Hosa FSC-385 Footswitch, Guitar-style, Dual-latching Guitar-style, Dual-latching Sturdy, extruded aluminum chassis makes it strong enough to withstand the rigors of the road Simply connect a 1/4 in TRS cable (sold separately) from the footswitch to the unit you wish to control, and youre set Designed for guitar amp channel switching, signal processor on-off switching, and similar electronic device functions