Bose QuietComfort 20 Acoustic Noise Cancelling Headphones for Apple Devices (Black)

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Combine the sort of passive noise-isolating effects of a good set of foam earplugs with the superior low frequency active noise-cancellation technology Bose has. So, the cancelling wave might not perfectly cancel the offending wave even if it makes it there in time.

These include short-duration loud noises like the rapid-fire “pop pop pop” of a motorcycle exhaust.

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The Bose system is better than average in this regard and it does stay inserted, but it still isn’t as deeply fitted into my ear canals than a pair of disposable ear plugs. You would thus be amplifying the ambient high frequency noise. That would obviously be counter productive. Producing “unanswered” noise-cancelling waves in this manner would be unfavorable because it would be using battery power to just produce more distracting noise in your ear canal. So currently, at best, this device can only cancel persistent and consistent noise. There might still be hope for the future, however. I’ve seen plots of the sound-dampening capabilities of a handful of various models, measured across the audible frequency spectrum.

The headphones are compatible with Bluetooth 5.1, with support for both AAC and SBC codecs, and the Bose Music app for Android and iOS allows for effortless pairing. Turn the headphones on, open the app, and it will pair the headphones with your mobile device without you needing to go to the Bluetooth menu. It isn't quite as seamless as the the way the AirPods Max automatically connect with iOS devices, but it's still simple and convenient.There is a microphone built into the earpiece that attempts to measure the phase, frequency, and amplitude of ambient sound waves about to hit your eardrum. But the quality of the Bose QuietComfort 20 Acoustic Noise Cancelling Headphones appears to be very good. A certain percentage of sound is transmitted through the skin, bones, etc. so you will always hear something. They have very good sound quality, fit flush with the ear, don’t come out putting on/taking off a helmet, and have superior noise isolation. Shure SE215’s are a great choice.” So it’s quite possible that more powerful amplification will be necessary to drive sound cancelling headphones with enough amplitude to effectively cancel the unwanted ambient noise.