User ManualTable of Contents1 Package Contents and Features41.1 MCD100-M USB Speakerphone41.2 MCD100-M USB Speakerphone Features42 Set Up52.1 Connecting USB Speakerphone to PC52.2 External Speakers/Headphones Connection5Office Communicator 2007 Speakerphone53 Using Your MCD100-M USB Speakerphone8Volume up, Volume down, Mute8Size: 944 KBPages: 9Language: EnglishOpen manual