This is the teenage engineering K.O.II sampler, the EP-133. It has been used for about 15 minutes, just to confirm its operation, so it's practically new. A powerful sampler/sequencer from teenage engineering The EP-133 K.O.II is a sequencer with a powerful sampler. You can record any sound and create samples and loops. You can fine-tune filters, pitch, etc., and automate them, and also add stereo effects, compressors, and other next-generation punch-in effects from teenage engineering. It offers a smooth workflow that allows you to create ideas and make tracks faster than ever before. Built-in microphone and speaker Stereo 6-voice / Mono 12-voice 64MB memory, 999 sample slots Built-in effects Pressure-sensitive keys and multi-function fader Sampling frequency: 46 kHz / 16-bit 1x stereo input/output, sync input/output, MIDI input/output, USB-C Power: 4x AAA batteries or via USB-C