Bought some new pedals a while back. Tried them out, never used them after that (just not a pedals guy). EHX Big Muff Pi $SOLD Rolls Personal Monitoring Station $SOLD Boss ME-20B Multiple Effects Pedal $80 All units have user manuals. All prices are OBO and include insured shipping within CONUS. All units are like new, seldom used. Big Muff unit has some velcro adhesive remnants on back.