Jabra Evolve 40 MS Wired On-Ear sterio Headset with Microphone and Media ControlsThis Jabra Evolve 40 Headset is a workplace evolution with great sound for calls and music, the Evolve 40 are professional headsets with easy call management through a control unit that makes, takes and mutes calls. Simple USB 2. 0,3. 0,3. 5 mm jack connectivity makes it easy to get started with your PC. 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