Bose QC 20 User Manual

For internal and reseller distribution only – Bose confidential.
CC011967_NRT Nautilus QA R3 3
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Bose
®
QC
®
20 Acoustic Noise Cancelling
®
headphones
Bose
®
QC
®
20i Acoustic Noise Cancelling
®
headphones
How is the total noise cancellation in
these headphones achieved?
The QC
®
20 and 20i headphones utilize both active and passive noise
reduction technologies. They use a sophisticated proprietary electronics
approach to active noise reduction, placing microphones both inside
and outside the earbud. The electronics system senses the sound in
almost any environment and then measures, compares and reacts –
instant by instant – to produce an opposing cancellation signal. New,
patented tip technology from Bose creates a gentle seal at the entrance
to the ear canal that enables full-spectrum noise reduction.
What is Aware mode?
In Aware mode, Bose
®
proprietary technology uses one of the
microphones within the earbud to pick up surrounding sounds and send
them to the user’s ear. This makes it possible for the user to hear what is
going on around them while still listening to their audio. At the same time,
Aware mode enhances the listening experience by maintaining a
minimal amount of noise reduction to block certain background noises
while still allowing the user to be aware of most ambient sounds.
Are you always able to hear your
surroundings in Aware mode?
As with any headphone, the signal from the audio source can dominate
the ability to hear your surroundings. If the source volume is at a
moderate level, Aware mode will provide the user with the ability to hear
their surroundings.
What is TriPort
®
headphone
technology?
Proprietary TriPort
®
headphone technology utilizes external ports to vent
the earbuds and effectively enlarge the acoustic volume, while
maintaining a small size. The result is better audio and active noise
reduction from a smaller, lighter, more comfortable headphone. TriPort
headphone technology is used in all of our consumer headphones.
What is Active EQ?
Active EQ (equalization) involves electronically tuning the frequency
response to closely match the proprietary Bose
®
audio target for
headphones. The closer the frequency response comes to matching the
target curve, the more lifelike the audio performance.
What is unpowered audio?
The QC
®
20 and 20i headphones are still able to play audio if the battery
power is depleted or when the unit is powered off. Note: power is
required for Noise Cancelling and Aware modes to operate.

Bose QC 20 Specifications

General

Brand	Bose
Model	QC 20
Category	Headphone
Language	English