The Poly Voyager Focus 2 Stereo Bluetooth Headset with three levels of hybrid active noise cancelling (ANC) reduces loud and distracting background noise. Featuring pro-grade microphones using Poly Acoustic Fence technology. The discreet microphone boom on the Voyager Focus 2 is not only ultra-noise cancelling but has Acoustic Fence technology, creating a virtual noise-free bubble in front of your mouth. It is so good it even meets the Microsoft Teams Open Office premium microphone requirements. Stay engaged during a full day of calls wearing an ultra-comfortable headband with super cushioned sling and plush ear cushions.