When your business is all about voice, it's all about Supra Plus Wideband Quality customer communications Wideband audio for more natural sound & clearer conversations Fully compatible with standard band environments Premium audio assures quality customer communications Ultra noise-cancelling, screen out background noise, reducing distraction Ergonomic design for all day comfort Over-the-head, all-day comfortable design for intensive use Proven robustness at millions of agent workstations Single & dual earpiece options meet varying needs & preferences Quick Disconnect cord lets users walk away from their phones without removing headset