DESC: SupraPlus Mono Over-Head Cord Phone Headset w/Noise Cancel MicProvides all-day comfort. Quick Disconnect lets you leave your desk while the caller remains on the line. Compact, lightweight headset with superior acoustics and sound reception. Reduces background noise and incoming loud tones while enhancing call clarity. Enhanced receive-side audio quality. Headset Type: Monaural; Headset Style: Over The Head; Earpiece Type: Soft Ear Cushion; Earpiece Material(s): N/A.PLN H251N, PLN-H251N, PLN,H251N - 0.355 lbs