Poly Blackwire 3315 provides a best-in-class audio experience in a headset built for enterprise deployment. It has a modern, stylish design. Its noise cancelling microphone boom is flexible, so workers can customize the fit. And the headset is fully adjustable with a comfort padded headband, pillow soft ear cushions, and 180-degree pivoting speakers. Not only that, but it also sounds as good as it looks—with high-quality audio you’d expect from Poly. Connects to PC via USB and devices that support USB Corded simplicity and reliability. Easy call controls BW33xx: Call answer/end button, volume, mute. BW33xx-M: Combined call answer/end and dedicated Microsoft Teams Button, volume, mute.