The Boss RV-3 Digital Reverb/Delay pedal delivers studio-quality delay, reverb, or both in a compact unit. It offers four reverb modes (Room 1, Room 2, Hall, Plate), three delay modes up to 2,000 ms, and four combined reverb/delay modes. Controls include Balance, Tone or Feedback, Time or Reverb Time, and an 11-position Mode switch. It features mono input, stereo outputs, and a five-year Boss warranty.