Special Features:

Item is a speaker-microphone system with mute, increase speaker/ringer volume, decreade speaker/ringer volume, set ringer volume, answer/end call buttons, call control fully integrated, can be used with unified communications (uc) system using microsoft, lync 2010, cisco and avaya.Device fearures an omnidirectional microphone

Properties:

An item consisting of a loudspeaker and a microphone housed in a common case. It may or may not include electronic circuitry to control its operation. Transmit-receive switching may be controlled by automatic, manual or remote operation. For a loudspeaker used as a microphone, see loudspeaker, (as modified).