Voyager 4220 vs 8220 UC - DECT vs Bluetooth - MIC TEST SHOWDOWN

I was curious about the sound quality difference between the Poly Voyager 4220 and the Poly 8220 UC as they both connect to the computer via USB dongle but run on different technology.

Which one do you think sounded better Poly 8220 or Poly Voyager 4220?

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Видео Voyager 4220 vs 8220 UC - DECT vs Bluetooth - MIC TEST SHOWDOWN канала Headset Advisor