Bose QuietControl 20 Care And Maintenance

Care and maintenance

Cleaning your headphones

Applies to:

 QC20 noise cancelling headphones – Apple devices
 QC20 noise cancelling headphones – Samsung/Android™ devices
 QuietControl 30 wireless headphones
 Bose Hearphones

It's important to clean the ear tips and earbuds of all Bose® in-ear headphones and headsets,
including the fine mesh screens on each earbud. This helps to ensure the best audio
performance. Even a small amount of debris can cause the sound to fade or cut out altogether.

 To clean the ear tips, remove them from the earbuds and wash them with mild soap.

Make sure you thoroughly rinse and dry them with a soft cloth (allow them to
completely dry before reattaching them to the earbuds)

 To clean the earbuds, remove the ear tips from the earbuds and lightly brush the mesh

screens with a soft dry cloth (be careful not to push ear wax into the mesh surface or
port hole). Then reattach the ear tips

 To deep clean the mesh screen, follow these steps:

1. Remove the tips from the earbuds

2. Apply a small amount of hydrogen peroxide (maximum concentration, 3%) to the mesh

surface of the earbud using a soft cloth or tissue (be careful not to allow excess liquid to
enter the open port on the earbud)

3. Let the earbuds sit for five minutes to allow the wax to soften

4. Wet a soft-bristled toothbrush with hydrogen peroxide (maximum concentration, 3%)

and gently scrub the mesh screen to loosen and remove the wax without allowing
excess hydrogen peroxide to enter the open port on the earbud

5. After the mesh surface is clean, gently shake out any excess liquid and debris, and dry

the earbud with a soft cloth

6. Reattach the ear tips

Caring for your Bose® product

Applies to:

 QC20 noise cancelling headphones – Apple devices
 QC20 noise cancelling headphones – Samsung/Android™ devices

There are a few simple things you can do to maintain your headphones.

 When connecting your headphones to an audio device, make certain the headphone

plug is fully inserted into a jack or adapter. You may only get a single channel of audio if
the connection is not complete

 Check your headphone cable to make sure it is not cut or frayed. When disconnecting it

from an audio device, do not pull on the cable—instead, grab the base of the
headphone plug or audio attenuator and pull gently

 When not in use, store your headphones in their carrying case. The case protects them

and keeps the cable organized

Using Aware mode

Applies to:

 QC20 noise cancelling headphones – Apple devices
 QC20 noise cancelling headphones – Samsung/Android™ devices

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.

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.

to switch to aware mode, press the mode button on the side of the remote. this will allow you
to hear some of the sounds around you, like traffic or airline announcements.

Recognizing the lights

Applies to:

 QC20 noise cancelling headphones – Apple devices
 QC20 noise cancelling headphones – Samsung/Android™ devices

Power/Battery Indicator

While using the headphones:

 Green (solid) — Power on. More than 3 hours of battery life remaining
 Green (blinking) — Power on. Less than 3 hours of battery life remaining
 None (Off) — Power off or battery depleted

While charging the headphones:

 Green (solid) — Charging complete
 Amber (blinking) — Charging
 Red — Error

Mode Indicator

 Green (On) — Noise cancelling mode on
 None (Off) — Aware mode on

Wearing your headphones

Applies to:

 QC20 noise cancelling headphones – Apple devices
 QC20 noise cancelling headphones – Samsung/Android™ devices

There are several ways you can adjust your headphones to provide additional comfort and
stability. Using the adjustment slider and clothing clip, you can customize how you wear your
headphones.

Using the adjustment slider

Move the adjustment slider up or down to reduce or increase the amount of loose cord
between the left and right earpiece.

Using the clothing clip

Use the clothing clip to fasten the cable to your clothing for convenience and stability, and to
help manage the cable. This can be helpful during high-movement activities or when using just
one earpiece.