For applications where voice quality is critical such as VoIP speech recognition and softphone our X100 USB adapters are the sound choice. Together with your existing professional headsets the X100 delivers audio performance on your computer that's equal to better than traditional phone systems. For most sound-based applications the X100 has all the features you'll need. Inline volume and mute controls for quick and easy call adjustments. Wideband audio for rich natural sounding conversations. Easy plug-and-play set-up: no drivers to install no downtime or technical support needed. Sleek lightweight design for easy transport from office to home. Compatible with VXi Plantronics® and GN Netcom®/Jabra® headsets. Compatible with Windows® and Mac® operating systems. Adapter/Charger Type: 3.5mm Jack; For Device Type: Headsets; Connector/Port/Interface: USB; Cable Type: Detachable USB Cable.