Wah effect with switchless system and traditional Vintage Wah tones combined with smooth audio taper volume control. Switchable Volume control for volume level settings. Led indicator and True Tone Buffer circuit to maintain instrument tone and level. Quick Clip battery door. Cold-Rolled Steel housing. Works with guitar, bass and keyboards. Powered from 9V battery or optional Morley Adapter. Current draw: 6 mA. Dimensions: 9,13" x 5,88" x 2,75". Color: Black.