The Jabra Evolve 40 is a professional headset designed to improve concentration and conversations. State-of-the-art, noise-cancelling microphones eliminates background noise and reduce high-frequency sounds. The control unit gives 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. Works straight out of the box. Installation is as easy as just plugging it into the USB port on your laptop. It also has a 3.5mm Jack which can be used for smart devices and tablets. Features Jabra Intelligent Call Transfer compatible for Skype call mobility Works with all mobile devices with 3.5mm jack Ultimate noise cancellation to allow enhanced concentration Intuitive control unit for ease of use Plug-and-play setup to laptop and smart device