Professional entry-level wireless mono headset is certified for use with Microsoft™ Link 2010 and Microsoft™ Office Communicator. Convertible design allows you to choose the wearing style that suits you best. Noise-canceling microphone enhances call clarity by eliminating office or call center background noise. Jabra SafeTone™ technologies protect hearing by cutting off sudden loud noises and securing safe average sound levels. Jabra IntelliPower system adjusts power consumption automatically to save energy and reduce your carbon footprint. Headset Type: Monaural; Headset Style: Ear hook / Over The Head; Earpiece Type: Ear Cushion.