Fulltone Supa-Trem Model ST-1, the finest amp-style Tremolo pedal you can buy. It's also an INCREDIBLE sounding clean boost! Home used only. No box or manual - manual available online on the Fulltone web. velcro on the bottom. Takes 9-18 Volts but because the current draw is low can also be powered by the battery (battery clip etc are located inside - easy to open with two screws, no screwdriver required) Collection in Dunfermline or can post for extra £5 with Tracked 24 next day. Has low-profile VOLUME knob on the outside of the pedal, and increased its available gain to around 15dB... allowing the ST-1 to pull double duty as a stellar clean boost. It uses a wonderful Analog Devices JFET AD711JN at the heart of its circuit, giving a warm yet clear tone when the pedal is turned on. The ST-1 employs a custom-designed Fulltone Opto-1 photocell with an extremely fast recovery time. This makes it behave just like an old 1960’s American tube-amp, but without the annoying ticking sounds that plague amps and other tremolo pedals. The Supa-Trem is the most versatile tremolo on the market, sporting True-Bypass with Blue ON/OFF L.E.D. and a Red RATE L.E.D. showing your speed at all times (even when pedal is OFF). Large RATE and MIX knobs let fine-tune on-the-fly with foot if needed. The SPEED footswitch correctly halves or doubles tempo. HARD/SOFT footswitch for choosing between SOFT MODE (a rollicking sine-wave) or HARD MODE, which is more of a square-wave machine-gun stutter. For organic Tremolo tones there’s nothing that approaches the Fulltone Supa-Trem ST-1, When the MIX knob is full CCW, the HARD/SOFT switch is set to SOFT, the pedal becomes an amazing Clean Boost device when turned on... simply set the VOLUME knob to how ever much kick you want. NOW, if you want to add tremolo, simply step on the HARD/SOFT footswitch and you’ll have a normal sounding sine-wave tremolo.