Selling my Boss Dynamic Bass Auto Wah Pedal. From the owner's manual: As a pedal designed to add dynamics to your playing, the Boss AW-3 auto-wah guitar pedal performs incredibly well. With an effect arsenal ranging from auto-wah, dynamic-wah, and a humanizer effect (that replicates human vowels), this Boss guitar effect pedal colors your tone impressively. Besides a guitar-in, this auto-wah guitar pedal also incorporates a bass-in that enables you to add a variety of funky wah sounds to your bass. Letting this go for $59.00 plus actual shipping.