Effect pedal, Preamp and Compressor. The Xotic Effects Custom Shop introduces the BBP-COMP. Users will have the ability to choose standard compression (think current BB-PREAMP), more compression (Andy Timmons BB-AT) and no compression. The new BBP-COMP rolls two iconic pedals into one while taking its sound to a new level with a no compression option. Quite possibly the most musical and versatile distortion pedals to ever have been created. The new Xotic Effect Custom Shop BBP-COMP, uniquely created, legendary tone with swagger. True bypass for eliminating any signal interference when switched off. Can be used with AC adaptor (optional) or 9V Battery.