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ヘッドフォン Bose QuietComfort 25のPDF よくある質問マニュアルをオンラインで閲覧またはダウンロードできます。Bose QuietComfort 25 16 ページ。 Acoustic noise cancelling headphones
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Bose
QuietComfort
®
Acoustic Noise Cancelling
PRODUCT SPECIFICATIONS
What are the mechanical specifications
of the cables and connector?
What are the noise reduction
specifications? Is there an NRR rating?
OTHER ISSUES
Will the QuietComfort 25 Acoustic
Noise Cancelling headphones help
consumers that suffer from tinnitus,
hyperacusis or autism?
For internal and reseller distribution only – Bose confidential
25
®
headphones
®
Cable length: 5.5 ft./66 in./1.68m
Interface connector: Commercial mini-plug (3.5mm diameter)
Bose Corporation does not provide a noise reduction rating (NRR) or
attenuation specification for our QuietComfort headphones.
The 1970s-era NRR standard for rating industrial hearing-protection devices
was developed long before active noise reduction headphones were
commercially available. In fact, NRR, as defined by the government,
cannot be determined for this product because the test method specified
by law is generally recognized to be inaccurate when applied to active
devices.
Bose Corporation does not make any claims about relief of tinnitus,
hyperacusis or autism, and we have not conducted any long-term clinical
studies of the headphones' effect on these conditions. Tinnitus,
hyperacusis and autism are complex conditions that are not easily
addressed. Some consumers have reported the headphones improve
their situation, but others have not experienced any improvement.
With the Bose Corporation 30-day trial period, we can suggest consumers
try the QuietComfort 25 headphones personally to see if they experience
an improvement.
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CC013997 QC25 FAQ 5.6.14