Micro sampler with 40 second sample memory and built-in recording microphone. PO-33, sample any sound source using line in or the built in microphone. melodic mode lets you play chromatic melodies and drum mode lets you play drums. sequence it all and add effects on top. Features: microphone for sampling, 8 melodic sample slots, sequencer, 16 effects, parameter locks, 40 seconds sample memory, built-in speaker, 3.5mm audio I/O, jam sync, animated LCD display, folding stand, clock + alarm clock, battery powered (2xAAA), 1 month battery life, 2 year standby time.