Polycom SoundStation2 Expandable Conference Phone (2200-16200-001)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Acoustic clarity full duplex for natural， simultaneous 2-way conversation</li><li>3 cardiod microphones with intelligent mic mixing and 10-foot pickup range</li><li>Adjustable volume with dynamic noise reduction</li><li>Caller ID， graphical backlit LCD， user selectable ring tones</li><li>12-Key telephone keypad with mute， volume up/down keys</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41lQjYXelvL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41AgApBf4iL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31cROZbgyQL.jpg" noproxy>