It is certifed for Skype for Business mono headset for VoIP softphone. Professional headset with easy 0 management and great sound for 0s and music. - Great sound for 0s and music - 0 control unit for managing 0s - Plug-and-play connectivity With great sound for 0s and music, the Evolve 20 and 20 Special Edition are entry-level professional headsets with easy 0 management through a control unit that makes, takes and mutes 0s. Simple connectivity makes it easy to get started with your PC with clearer conversation for greater efficiency It is an entry-level professional headset with easy 0 management and great sound for 0s and music. You can manage 0s easily by getting easy access to the most used functions, like volume and mute. You can also answer and end 0s quickly and easily, directly from the control unit with a flexible Plug and Play connectivity. It works straight out of the box and installation is as easy as simply plugging it into the USB port on your laptop. Features -Made for voice 0s and music -Passive noise cancellation / Noise canceling microphone -Easy 0 management using control unit -Flexible UC Plug and Play connectivity -HD Voice, PeakStopTM technology -HiFi sound, remote 0 control/easy 0 management -Jabra software compatible -Crystal clear sound, on the ear wearing style, passive noise cancellation