Sample anything, anywhere with Teenage Engineering's K.O.! pocket operator. Part of the third-generation PO series, it has a built-in microphone for recording samples up to 40 seconds in length, eight sample slots, eight drum slots, a sequencer, and 16 effects. A built-in speaker allows for immediate feedback, a 3.5mm in/out jack lets it hook up to larger systems, and the animated display makes creating sounds fun.