Record button OFF = Chorus mode: binaural chorusing effect. Input(s) split into binaural pair with slight pitch offsets relative to original pitch. Separate pitch offset and amplitude controls for each channel. Mix controls balance of input signal vs. effect.

Record button ON = OSC mode: binaural beating oscillator. Dual sine/triangle oscillators at same pitch, set by v/oct or Pitch knob. Separate beating rate and amplitude controls for each channel. Mix controls balance of plain oscillators vs. beating effect.

Panning/tremolo applies to both modes.