85210-01 - Plantronics Calisto P835-M USB Speaker Phone MOC + wireless Mic - a multi-device speakerphone system that includes a wireless microphone & features a 2.4" color display and a touch sensitive dial pad for easy caller ID viewing dialing answering switching and muting across devices you have plete call control. The system provides premium sound and unparalleled audio quality thanks to full duplex wideband audio support and advanced noise cancellation. And with the unique wireless lapel microphone you can stay in control of calls as you roam around your office or even place it on a table to host impromptu conference calls with colleagues at a moment?s notice.