Dunlop BB535 Cry Baby Wah/Boost 1994 Reissue Effect PedalDunlop is back again to prove they know wah t's up when it comes to wahs. Originally released in 1994, the BB535 Cry Baby Wah was the first commercially modded wah effect on the market, and Dunlop has brought it backaccurately recreated for the modern guitarist. Let's set the record straight: the BB535 debuted in 1994, but this specific rerelease models the 1999 production of the pedal, and for good reason. First off, this isn't simply a "wah plus".