Marshall EH-1 Echohead Effects Pedal CONTROLS: MULTI-MODE SELECTOR SWITCH, DELAY TIME CONTROL, FEEDBACK CONTROL, LEVEL CONTROL. FEATURES: SOLID METAL CASING, PASSIVE BYPASS, TAP TEMPO PEDAL INPUT POWER: 9V JACK SOCKETS: INPUT JACK 1: GUITAR INPUT, INPUT JACK 2: TAP TEMPO PEDAL INPUT, OUTPUT JACK 1: LEFT/BYPASS, OUTPUT 2: RIGHT/SPILL INPUT IMPEDANCE: &gt;1 M0hms, OUTPUT LOAD IMPEDANCE: &lt;1 k0hms