Plantronics Blackwire C620-M

Professional grade wideband audio optimized for PC communication environments where frequent softphone conference calls take place Noise-canceling microphone limits outside noise interruptions, ensuring excellent audio quality and easing listener fatigue Echo cancellation for full-duplex speakerphones when both the microphone and speaker are on at the same time Hi-Fi stereo sound ensures audio quality for calls and multimedia applications like music, video conferencing, etc. Call controls include call/answer/end button for easy call management Volume adjustment with +/- and mute button simplifies operation Soft ear cushions, and flexible headband adjusts for the perfect fit and all day comfort QuickAdjust boom offers an adjustable boom angle, and microphone-to-mouth distance for optimal voice transmission SoundGuard protects hearing from loud sound spikes by limiting call volume at 118db Choose total-focus sound reduction (C620 binaural design) or converse easily with co-workers while wearing the headset (C610 monaural design) Ideal for frequent users of PC audio, conference calls, webinars, video conferencing and collaboration Optimized for Microsoft® Office Communicator 2007 and Microsoft® Lync™ 2010 Standard version supports leading softphone vendors; Avaya, Cisco, IBM and more