Black Office/Call center Head-band Headset Wired USB connectivity Supraaural 150 - 7000 Hz 3293.6 dB Microphone type: Boom -44 dB Evolve 20Professional headset with easy call management and great sound for calls and musicGet more productiveEasy call managementGet easy access to the most used functions, such as volume and mute. You can also answer and end calls directly from the control unit.Passive Noise CancellationSimply wear the headset to eliminate high-frequency noise, such as human voicesall thanks to the specially designed ear cushions. We call thispassive noise cancellation.Get the basics rightUltimate noise cancellation microphoneState-of-the-art, noise-cancelling microphone eliminates background noise. The ear cushions are designed to reduce high-frequency sounds. You and your conversation partner wont struggle to hear each other.Plug-and-play setupThe headset works out of the box with all leading systems. Installation is as easy as simply plugging it in. Performanc