Korg volca fm 2

volca fm 2: 6-voice polyphony, 6-Operator digital FM synth with 32 algorithms, 16-step sequencer, reverb, delay, arpeggiator, and MIDI In/Out. It faithfully reproduces the classic Yamaha DX7's sound and is compatible with its patches. Compact, battery or adapter-powered, built-in speakers.