BOSS ME-50B multi-effects pedal system for BASS GUITAR. Considered one of the best money can buy. If you want an all-in-one-solution then this is it. You can use headphones with this unit and play quietly (I sometimes take it when I'm traveling so I can play in my hotel room). Used but never abused. $150.00 or will trade for other pedals... the more interesting the better. Anything Moog is a go! And any old Chorus pedals will be looked at seriously! USA Buyers Only Please.