Two is the magic number for the DUO-CAPTURE USB audio interface. It's equipped with two audio inputs and two audio outputs. The dual headphone outs are perfect for side-by-side musician/engineer sessions, with no additional mixing hardware required. DUO-CAPTURE boasts ultra-stable, low-latency drivers for both Mac and PC platforms, and provides a versatile selection of I/O formats to accommodate a variety of gear. With its unique, slim-line design and stable performance, it's the perfect audio interface for recording musicians on the go.