Plantronics P51-U10P Supra Polaris is the popular choice for a lightweight, economical headset with over-the-head design. Monaural Supra headsets have one ear pad which can be easily switched from right to left ear. The legendary voice tube microphone assures world-class voice clarity. Plantronics Quick Disconnect acts like an on-hold function if you need to walk away from your desk during a call while still wearing your headset. Comes complete with Polaris cable (Quick Disconnect to modular plug) that connects headset directly to your Polaris-compatible phone.