This new Switchless bass wah has 2 wah modes - Traditional and Funk Wah. Traditional wah mode is for classic wah tones. Click on the Funk wah and you get a percussive, funky wah that is great for slappin' and poppin'. Used by such renown Bass players as Philip Bynoe, Bill Dickens, Dave Pomeroy, Marcelo D. Rapp, Rudy Sarzo, T.M. Stevens & Jauqo III-X. Great for use with 5, 6 and 7 string basses where the lower string frequency is too low for standard WAH pedals. Also great for 7 string and/or detuned guitars also! WAH level control, easy access battery compartment and two-year warranty.