This used Teenage Engineering OP-1 Field Synthesizer is in excellent condition and functions flawlessly, with minimal signs of wear. Combining a sleek, ultraportable design with powerful performance, the OP-1 Field features a high-resolution display, stereo signal path, 32-bit audio engine, integrated FM radio, built-in microphone, and a rechargeable USB-C battery offering up to 24 hours of continuous use. It boasts four individually assignable synth engines, four-track tape recorder, drum sampler, mixer, and multiple built-in effects, all packed into a durable aluminum body. Whether you're composing on the go or adding creativity to your studio, this versatile unit delivers exceptional sound and intuitive workflow, making it a favorite among musicians, producers, and sound designers.