The Ernie Ball Wah is a rugged tough pedal built like a tank and road ready for any pedal-board, studio or jam room you may encounter. This pedal feature a very smooth, fluid response with a dynamic range capturing the lowest low to bright shimmering highs. The Ernie Ball wah is voiced nicely for rock soloing and/or the funky syncopated rhythm work ala Nile Rogers and George Johnson, 1978. Aluminum alloy casting ,front mounted jacks, adjustable on-off switch, bright green LED lights and no slip surface round out the pedals mechanical features. A 12 degree foot sweep with a smooth coated kevlar drive and true bypass makes this pedal one of the best in the business. The Ernie Ball Wah is clean and concise, quiet and well voiced for a variety of styles and tastes. Specifications: AC or battery powered. Pedal dimensions: 3.5" W x 10" L x 2 3/8" H