When people talk about wah pedals, they re talking about the Crybaby. This is the original the one that created some of the most timeless sounds in rock. Relied on by Jimi Hendrix, Eric Clapton, Buddy Guy, David Gilmour, and many other greats. Features: Heavy die cast construction for years of reliability, 100K ohm Hot Potz potentiometer that allows for that quick, abrupt wah sound. Powered by the Dunlop ECB-003 AC Adapter and/or 9 volt battery.10'' x 4'' x 2-1/2'' 3.7 lbs. Black