Vintage pedal board that includes four Big Jam pedals, SE-7 Delay Machine, SE-12 Chorus, SE-18 Parametric EQ and SE-6 Graphic Equalizer, the pedal board supplies the power, no battery doors on pedals (not sure they had battery doors), pedals can also run on 9V batteries (NOT included), includes cables, fairly rare to find them in an actual Big Jam pedal board, built in Japan for Multivox of Happauge, NY, VG-EC