Poly Plantronics Blackwire C3220 Cabling Headset - Black The Blackwire 3200 Series provides a best-in-class audio experience in a headset that’s built for enterprise needs. Even better, people want to wear it - so your investment pays off. With a sleek design and flexible microphone boom for a customizable fit, what’s not to love? Plus, it sounds as good as it looks. Enjoy the high-quality audio you expect from Poly.