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Cutting Edge Noise Cancelling: Features four microphones and a proprietary DSP that work together to cancel disruptive background noise like traffic or crowds.
Exclusive WindSmart Technology: Six layers of our unique WindSmart technology detect wind direction and respond accordingly so your voice comes through clearly especially outdoors.
HD Voice Clarity: Supports HD Voice over wideband networks and devices to enhance speech quality, so your caller clearly hears and understands you.
All Day Comfort: Rigorously tested for stability and comfort on a wide range of ear shapes, so it feels as comfortable on your last call of the day as it did on the first.
Compact 9" cable stows easily in your laptop bag or other container
Charge from any powered USB port
Fully compatible with Plantronics Modular AC Wall Charger 89034-01