Plantronics Blackwire C520-M Binaural USB Headset Category_Best4Headsets/3M Peltor Headsets/3M Peltor X-Series Ear Defenders volume for external input and

volume for external input and input mode

Simultaneous Bluetooth connections: 2

Place or receive call without the need for a mechanical lifter

4 Levels of Active Noise Cancellation

Single-sided wearing style (monaural) – numbered headband grooves for step-by-step adjustment for instant perfect fit

Plantronics Blackwire C520-M Binaural USB Headset Category_Best4Headsets/3M Peltor Headsets/3M Peltor X-Series Ear Defenders volume for external input andOptimised for Microsoft Lync Microsoft Office Communicator Binaural USB Headset Hi Fi Stereo Sound Dynamic EQ automatically adjusts audio settings between voice calls and music PC wideband audio noise canceling Noise Cancelling Microphone Digital Signal Processing (DSP) Headset control panel UC presence automatically updated when on a call One touch call controls: answer end volume mute Smart Sensor technology answer a call by putting on the headset