The advanced microphone eliminates background noise, making phone calls as precise and authentic as a face-to-face conversation. The 3.5 mm jack allows users to connect to their personal device—such as a smartphone or tablet—anywhere to work or listen to music. It's ready to use with all leading systems. Easy to install—just plug in and go. The Jabra Evolve 30 creates a completely isolated concentration zone in a noisy, open office environment—allowing you to focus entirely on your work.