Perfect for speech recognition, Internet telephony, and online chat, this new PC headset features a noise-cancelling microphone for improved speech recognition and the QuickAdjust telescoping microphone with stowable boom for perfect placement every time. Its monaural design lets you hear what's going on around you whilst listening to your PC. Lightweight and flexible with a soft, swivel-mounted ear cushion for all-day comfort. Durable construction. In-line volume and mute controls. Compatible with most popular PC sound cards, for plug-and-play ease. The new Plantronics .Audio 50 PC headset. For sound quality that's right on the dot. Contact your MAC supplier for information on headset compatibility.