ADAPT 660 Series from EPOS | Work wherever, whenever
Amazon.com: Sennheiser SC 660 ANC USB (508311) - Double-Sided (Binaural) Business Headset | for Skype for Business | with HD Sound, Active Noise Cancellation Microphone, & USB Connector (Black) : Electronics
EPOS I SENNHEISER IMPACT SC 660 ANC USB | www.shi.com