HP Poly BW 8225 Stereo -M USB-C +USB-C/A 80033865 8X225AA Product Description: Poly Blackwire 8225 - headset Product Type: Headset - wired - USB-C Compatibility: Mac, Windows Recommended Use: Phone, computer Colour: Black Headphones Form Factor: On-ear Connectivity Technology: Wired Sound Output Mode: Stereo Audio Specifications: Sensitivity 84 dB +/- 3dB Impedance: 32 Ohm Signal-To-Noise Ratio: 118 dB Active Noise Canceling: Yes Microphone: Boom Microphone Operation Mode: Omni-directional Microphone Noise Cancelling: Yes Controls: Mute, volume, answer/end, ANC on/off Software Certification: Certified for Microsoft Teams, UC certified