Poly Voyager Focus 2 Microsoft Teams Certified USB-C Headset (77Y88AA) - Connectivity: Bluetooth, USB Type-C, Speaker size: 32mm, Number of Microphones: 4, Microphone Type: Noise cancelling, Charge Time: 2 hours, Battery Life: Up to 25 hours, Battery Type: Rechargeable Li-ion, Bluetooth Version: 5.1, Voice Alerts, Voice Assistant, Button User Controls, Cable length: 1.5m