Poly Blackwire 3225 Wired Headset (Plantronics) - Noise-Canceling Mic – Stereo Design - Connect to PC/Mac/Mobile via USB-C, USB-A, or 3.5mm - Works w/Teams, Zoom - Amazon Exclusive
Poly Voyager Legend Wireless Headset (Plantronics) - Single-Ear Bluetooth w/Noise-Canceling Mic - Voice Controls - Mute & Volume Buttons - Ergonomic Design -Connect to Mobile/Tablet via Bluetooth -FFP
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I have a couple Plantronics Blackwire 5220 headsets, I bought them because the mic reportedly has noise cancelling, but I am trying to understand how it works and whether I need to use the USB dongle.
I've read the way the noise cancelling works is that the boom has two mics, one captures noise ambient and it's substracted from the main one. Do you know if this logic is in the headset or in the dongle? I don't notice much of a difference using the dongle or not, and the headset jack is a TRRS type, which I'm not sure can provide signal for two mics together with the stereo signal. On the other hand, I am not sure how this logic could exist in the headset--I guess in analog, passive form? The headset doesn't seem easy to open without breaking, so I wonder if someone knows more about this.