Jabra Evolve 20SE Professional headset with easy call management and great sound for calls and music Stereo UC Edition USB-A connection. It is more than headsets, a workplace evolution. It has great sound for calls and music, the Evolve 20 and 20 Special Edition are entry-level professional headsets with easy call management through a control unit that makes, takes and mutes calls. Simple connectivity makes it easy to get started with your PC. With clearer conversation for greater efficiency, easy call management and great sound for calls and music.Manage calls easily: Get easy access to the most used functions, like volume and mute. You can also answer and end calls quickly and easily, directly from the control unit. Flexible Plug and Play connectivity: Works straight out of the box. Installation is as easy as simply plugging it in to the USB port on your laptop. All day comfort (Evolve 20SE): Built for style and comfort with soft leatherette ear cushions. Adjustable headband lets you find the perfect fit. Features - UC Edition - Stereo - USB-A Connection - Made for voice calls and music - Passive noise cancellation - Easy call management using control unit