No troublesome wires or installation issues. Simple plug-n-play setup allows you to enjoy wireless internet calls and music up to 15-meter range without being tethered to the desk. A noise-filtering microphone ensures quality speech clarity while filtering out ambient background noise - every word of yours matters. A built-in equalizer optimizes voice and music, delivering clear and faithful sound reproduction. Dual 40mm drivers ensure full-range stereo sound. The HS-W1 provides you up to eight-hours of non-stop conversation. If you are running low on battery, just plug the headset into a USB port without missing a beat. An ergonomic design with dual 70mm cushions keep you comfortable by easing pressure points; perfect for relaxed all-day usage. The microphone automatically mutes when raised, and immediately picks up a call by rotating the microphone down. Convenient volume adjustment with control buttons right on the ear pad. Foldable design with a slim durable touring case that fits handbags or suitcases - ideal for the business traveler.