Poly B 5200

FEATURES
•Four-mic noise cancelling and a proprietary DSP cancel disruptive background noise like traffic or crowds
•Six layers of our unique WindSmart technology ensure your voice comes through clearly—especially outdoors
•HD Voice clarity on wideband devices and networks
•Optional charging case provides up to 14 hours recharging
•Rigorously tested for all-day comfort
•Dedicated voice control button
•Smart sensor technology
•Audio alerts, caller ID, and voice answer
•Sweatproof nano-coating by P2i