With the Teenage Engineering PO Metal Series Super Set you create drums, record samples yourself and edit your own voice. The package consists of the PO-32 drum computer, PO-33 sampler, PO-35 voice synthesizer, 3 protective covers and 3 cables. Because the instruments are pocket-sized and work on batteries, you use them everywhere. This way you produce music while you are on the road or record sound clips on location. All Pocket Operators have built-in speakers. This allows you to use the micro instruments wherever you want. You edit the drums and sound clips with the effects. This way you make sounds sound more interesting.