Plantronics .Audio 326 Stereo PC Headset Full-range stereo sound. Noise-canceling microphone Convenient in-line controls for music and microphone volume or mute Lightweight and comfortable for hours. 3.5mm connection into your PC's Soundcard Boom stows discreetly when not in use Full-range stereo sound Noise-canceling microphone Convenient in-line controls for music and microphone volume or mute Lightweight and comfortable for hours Boom stows discreetly when not in use