The Mooer MEP-FM Funky Monkey auto wah micro guitar effects pedal packs an incredibly BIG sound into a very small package. The Funky Monkey offers a wide range of auto wah effects. There are 3 peak modes: Hi, Mid, and Low. Adjust the Range, Q and Rate controls to dial in your auto wah sound. Features: 3 way mode switch: Hi/Mid/Low peak Range: Adjusts frequency range of wah effect Q: Adjusts intensity of resonance Rate: Adjusts speed of wah The pedal switching is True Bypass, so the sonic integrity of your instrument is never lost. Rugged full metal casing and quality switching in a small and exquisite design. Dimensions (HxWxD): 93.5 x 42 x 52 mm DC 9V Centre Negative Power Supply (sold separately)