Make Your Axe Talk, Sing, and Cry The VO-1 Vocoder is a unique and innovative stompbox that puts the massive expressive range of the human voice in the hands of every guitarist and bassist. By vocalizing into a connected mic as you play, it’s easy to transform your tone with electronic voices, classic talk box sounds, and tons of all-new colors that are perfect for modern music styles. It’s even possible to create impressive ensemble vocal sounds without the need to connect an external mic. When you plug into the VO-1, you can literally talk, sing, and cry with your axe, taking your playing to places you never dreamed of before. Features Innovative, easy-to-use vocoder pedal powered by BOSS’s famous guitar synth technology Use your voice to dramatically extend the expressive range of your instrument in countless ways Vintage mode for classic electronic synth-voice sounds and Advanced mode for all-new vocoder tones with enhanced clarity Talk Box mode enables “talking lead guitar” tones without the hassles of a traditional talk box setup Choir mode for achieving rich vocal sounds with no mic connected Effect loop for sound enhancement and easy integration with existing pedals Works with guitar, bass, or any instrument with a 1/4-inch output BOSS five-year warranty