Transform any work space into a conference room with the professional-quality Plantronics MCD100 Speakerphone. Ideal for small and medium-sized work areas, the compact yet powerful MCD100 provides 360-degree room coverage so call participants never miss a word. The MCD100 connects via USB cable to your PC and enables you to make calls using online software. Full duplex wideband audio enhances UC and VoIP communications and boosts meeting productivity by reducing echo and drop-outs. Providing convenient mute and volume control, the MCD100 features a headphone jack that enables private phone calls.