Give your guitar or bass the expressive voice you' ve always wanted with the BOSS VO-1 Vocoder. Offering powerful vocal expression and countless possibilities, the VO-1 can make your guitar sing, cry or talk when connected to your mic and instrument thanks to BOSS' legendary synth technology. The VO-1 also features a Choir mode for rich vocals when your mic is not connected. All of this and much more is jam-packed into BOSS' world-famous compact stompbox housing, making it the perfect addition to any pedalboard. Power supply extra. Get your Boss VO-1 Vocoder Guitar Effects Pedal today at the guaranteed lowest price from Sam Ash Direct with our 45-day return and 60-day price protection policy.