Product details:

All you hear is your call with three levels of hybrid active noise canceling (ANC). All they hear is you with our pro-grade microphones using Poly Acoustic Fence technology. It's all the Poly next-level engineering you expect with the wear-it-all-day comfort you need. Connect to a desk phone (via telephone interface cable), computer (via USB-A cable) and mobile (via Bluetooth) with the office base that also keeps the headset charged.