The revolutionary Planet Waves S.O.S. Guitar Tuner pulses two out-of-phase LED light beams directly onto the vibrating string. When the string is out of tune, the two lights will visually dance on the string being tuned. As you approachin-tune status, the movement slows down and eventually stops when you are perfectly in tune. This revolutionary visual tuning system enables precision tuning in silent or noisy environments, without the need for audible sound or sensing of any kind.

Planet Waves SOS Bass Tuner from D'Addario is 100% original and brand new. We, at Melody House take pride in our after sales service and support. For further details on the Planet Waves SOS Bass Tuner, D'Addario, simply write to us to consult an expert or order online and we will take care of the rest. Happy Shopping!