The Poly Blackwire 3220 wired headset suppresses background noise with its noise-cancelling microphone so that users can make undisturbed and concentrated calls. It is designed for Microsoft Teams and Skype for Business to provide maximum call comfort. This high-quality, binaural headset has a digital signal processor and wideband audio. These features allow the Poly Blackwire 3220 to achieve an impressively full and multi-faceted sound. Equipped with modern SoundGuard technology, the Poly Blackwire 3220 effectively avoids too loud sounds and overmodulation. In this way, it is easy on the ears and allows for relaxed listening.