Clean Stereo Sound: 40 mm speaker units provide a clean stereo sound that guarantees a HIFI listening experience.. Bendable Boom Microphone: 120-degree rotatable boom mic gives you the freedom to position the mic where you find it most comfortable. Simply turn it 90 degrees to hide it when you are not using it. In-Line Controls: Easily adjust volume, mic muting, and speaker muting from the compact in-line control, allowing you to efficiently manage the sound settings during video conferences.