Plantronics Entera USB HW121N-M Microsoft Binaural 202239-01 Cell Phone Headsets the Calisto 600 series speakerphones

the Calisto 600 series speakerphones provide professional-sounding audio wherever you touch down

Audio fidelity that gives you an edge

comfortable fit

Cord stretches to give approximately 10 feet of length

Speakerphone with Breakout Box for Avaya 2400

Plantronics Entera USB HW121N-M Microsoft Binaural 202239-01 Cell Phone Headsets the Calisto 600 series speakerphonesFor those who spend hours each day on long conference calls, webinars and video conferencing, the exceptional voice clarity and all day comfort of the Entera USB Series make communications more effective and productive. For those who spend hours each day on long conference calls, webinars and video conferencing, the exceptional voice clarity and all day comfort of theEntera USB Series make communications more effective and productive. Featuring a