Slick, comfortable, and of superb quality, the AC-840 USB mono headset is an excellent choice for anyone doing VoIP. The adjustable, over-the-head design fits comfortably on any head size, and the flexible, noise-canceling boom mic’s 180-degree rotation gets the job done, no matter your preference. Bring your ears to attention with the AC-840’s 30mm dynamic driver. The in-line volume control and mute switch are conveniently located within reach, and comfort is no issue with the AC-840’s soft, leatherette ear pad. Chat in style.