MU-TRON III+® translates the envelope or "volume profile" of every musical passage, ...automatically... into an easily-controlled, vowel-like sound, as you play. Use MU-TRON III+® to create a variety of synthesizer sounds with most electrified instruments: guitar, bass, keyboards, drums, flute, saxophone, brasses, .... even microphone. The sharper your attack and the more percussive your instrument, the wilder your sound will be. Besides providing that inverted "snap" (perfect for funky bass), MU-TRON III+® also functions as an automatic "wah" pedal.EXCELLENT CONDITION! (Power supply included)WORLDWIDE AND EXPRESS SHIPPING AVAILABLE!International Buyers: I recommend buying insurance $4. Buyer is responsible for import taxes, customs fees, etc.