The OP-1 Field is a handheld, portable synthesizer with a built-in speaker, microphone, multiple effects, vocoder, fm radio, bluetooth midi, and velocity sensitive keyboard. Upgrades from the previous model include increased battery life, new preset synth patches, more sample storage, and new synth engines.

This device is like new and shows no signs of playwear. The included Velcro back fasteners have been affixed. Excellent condition.