- four bypassed (by electro mechanic relay) loops to connect the pedal effects or serially connected sets of effects,
- muting circuit based on opto elements,
- MIDI THRU connector to connect other MIDI devices,
- power supply and active loop indicators,
- four buttons for loops' manual on/off switching,
- power supply 9V DC (direct current),
- durable, powder-coated casing.