Poly Blackwire 3320 -M USB-A Headset AE | 76J17AAKey Features Microsoft Teams Certified: Ensures seamless integration and call control with Microsoft Teams. Noise Cancelling Microphone: Reduces background noise for clearer audio on calls. Stereo Sound: It delivers clear audio for both calls and multimedia. On Ear Design: Lightweight and comfortable for extended wear. Intuitive In Line Controls: Easy access to call controls like answer end, volume, and mute. USB A Connectivity: Simple plug and play