It is a sequencer that connects to other devices to sequence their parameters that can be controlled by expression pedal or CV generators, such as oscillators, filters, delay settings ... Choose your tempo with the Rate metering device or Tap Tempo or synchronize with a MIDI drum machine. It offers 4 sequence directions: forward, backward, cascade, random. A rotary encoder controls the metering rate, direction, length and depth of the sequence. Record, save and play back 10 presets and up to 100 with the 8 Step Program Foot Controller (not supplied). 9V power supply provided.