PHOENIX AUDIO DUET PCS MT202-PCO

Despite its powerful features, the Duet PCS offers simple plug-and-play connectivity with a USB connection for compatibility with PC and Mac computers. The unit also draws its power from the USB port, so there are no batteries or power cables to mess with. In addition to VoIP conferencing, the USB connection can be used to play back computer media or to record a meeting. There is a 3.5mm output for connecting external amplifiers and computer speakers.