[About the Item] This is a hand clap sound source (analog) developed and sold by a major musical instrument store. It has a slightly different sound from the TR-808, and distortion becomes noticeable if the decay is set too long (a typical value is recommended). DC 9V (negative) terminal and external trigger terminal have been confirmed. There is also some wear and tear, so please refer to the images to make your judgment. [Included Items] None. [Important Notes] We are sorry, but we cannot accept returns. Please consider purchasing only if you understand the above. Thank you. #RhythmMachine #DrumMachine #SoundModule #AnalogSynth #ModularSynth #RhythmMachine #DrumMachine #HandClap