Unfied Communication Yealink BH76 Headset - Microsoft Teams Certification - Stereo - USB Type A - Wired/Wireless - Bluetooth - 98.4 ft - 20 Hz - 20 kHz - Over-the-head - Binaural - Supra-aural - 3.9 ft Cable - Electret Condenser, MEMS Technology, Directional, Noise Cancelling Microphone - Black