EPOS Audio 1001136, IMPACT 1060T MS ANC Bluetooth Stereo Headset, Microsoft Teams Certified, ANC (Active Noise Cancelling), 4 Digital MEMS Microphones, Frequency Response: 20 Hz ~ 20 kHz, Microphone Frequency Response: 100 Hz ~ 16 kHz, Wireless Range: Up to 30m, On-Ear Design, Bluetooth Connectivity, 2 Year Warranty.