Poly Savi 8420 Office Stereo Microsoft Teams Certified DECT 1920-1930 MHz Headset TAA - Microsoft Teams Certification - Stereo - Wireless - Bluetooth/DECT - 590.6 ft - 32 Ohm - 20 Hz - 20 kHz - On-ear, Over-the-head - Binaural - Supra-aural - Noise Cancelling Microphone - Noise Canceling - Black - TAA Compliant: