Input sound monitoring can be set to stereo or mono.Output sources can be selected in the setting panel.Separate controls for line and headphones output volumes.Balanced analog TRS output jacks suitable for connection to powered monitors.Angled design provides excellent usability on a desktop.Direct monitoring function for zero-latency monitoring.Connect with iPads and other iOS devices.Support for Windows and Mac OS X operating systems.NE5532 op-amps used at the audio input and output stages.Ultra-HDDA (High Definition Discrete Architecture) mic preamps with −125dBu EIN.Functions common to both the US-2x2 and US-4x4