Sennheiser ADCS1 User manual

All-Day Clear Slim
OTC Hearing Aids
Model: ADCS1
Instruction manual

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Warnings
WARNING: If you are younger than 18, do
not use this.
You should go to a doctor, preferably an ear-
nose-throat doctor (an ENT), because your
condition needs specialized care. Over-the-
counter hearing aids are only for users who
are age 18 or older.
This OTC hearing aid is for users age 18
and older. People who are younger than
18 with hearing loss should see a doctor,
preferably an ENT, because they may need
medical testing and management. Hearing
loss can affect speech and learning, so
professional fitting and continuing care are
also important.
WARNING: When to see a doctor
If you have any of the problems listed below,
please see a doctor, preferably an ear-nose-
throat doctor (an ENT).
• Your ear has a birth defect or an unusual
shape. Your ear was injured or deformed in an
accident.
• You saw blood, pus, or fluid coming out of your
ear in the past  months.
• Your ear feels painful or uncomfortable.
• You have a lot of ear wax, or you think
something could be in your ear.
• You get really dizzy or have a feeling of
spinning or swaying (called vertigo).
• Your hearing changed suddenly in the past 
months.
• Your hearing changes: it gets worse then gets
better again.
• You have worse hearing in one ear.
• You hear ringing or buzzing in only one ear.
WARNING: This hearing aid should not
cause pain when inserting it.
Remove this device from your ear if it causes
pain or discomfort when you insert or place
it. To try again, make sure to follow the
instructions. If you feel pain or discomfort
again, contact the manufacturer. If your pain
or discomfort doesn't go away, contact your
hearing healthcare professional. You can
also report this to FDA as an adverse event
according to the instructions that appear
later.

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Note: If you remain concerned, consult a
licensed professional.
If you try this device and continue to
struggle with or remain concerned about
your hearing, you should consult with a
hearing healthcare professional.
Note: What you might expect when you
start using a hearing aid.
A hearing aid can benefit many people with
hearing loss. However, you should know
it will not restore normal hearing, and you
may still have some difficulty hearing over
noise. Further, a hearing aid will not prevent
or improve a medical condition that causes
hearing loss.
People who start using hearing aids
sometimes need a few weeks to get used
to them. Similarly, many people find that
training or counselling can help them get
more out of their devices.
If you have hearing loss in both ears, you
might get more out of using hearing aids
in both, especially in situations that make
Caution: This is not hearing protection.
You should remove this device if you
experience overly loud sounds, whether
short or long-lasting. If you're in a loud place,
you should use the right kind of hearing
protection instead of wearing this device. In
general, if you would use ear plugs in a loud
place, you should remove this device and
use ear plugs.
Caution: The sound output should not be
uncomfortable or painful.
You should turn down the volume or
remove the device if the sound output
is uncomfortably loud or painful. If you
consistently need to turn the volume down,
you may need to further adjust your device.
Caution: You might need medical help if a
piece gets stuck in your ear.
If any part of your hearing aid, like the eartip,
gets stuck in your ear, and you can't easily
remove it with your fingers, get medical help
as soon as you can. You should not try to use
tweezers or cotton swabs because they can
push the part farther into your ear, injuring
your eardrum or ear canal, possibly seriously.

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Good day!
Thank you for choosing Sennheiser
All-Day Clear. This manual is little but packed
with important details. Please read through
it carefully to make sure that you understand
and get the best out of your All-Day Clear
experience.
For more support, visit:
www.sennheiser-hearing.com/alldayclear
you tired from listening - for example, noisy
environments.
Note: Tell FDA about injuries, malfunctions,
or other adverse events.
To report a problem involving your hearing
aid, you should submit the information to
FDA as soon as possible after the problem.
FDA calls them "adverse events," and they
might include: skin irritation in your ear,
injury from the device (like cuts or scratches,
or burns from an overheated battery), pieces
of the device getting stuck in your ear,
suddenly worsening hearing loss from using
the device, etc.
Instructions for reporting are available at
http://www.fda.gov/Safety/MedWatch, or
call 1-800-FDA-1088. You can also download
a form to mail to FDA.

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What’s inside the box?
Hearing aids for
left and right ear
Charging
case
Charging cable
with USB-A
and USB-C
connector
Wall plug
Set of eartips –
small, medium
(installed on
hearing aid) and
large
Cleaning
brush
Carrying case Wax guards
(6)
Dispose foam insert used to hold devices in place for shipping.
What’s inside this manual?
Warnings ................................................................ 2
What’s inside the box? ......................................... 8
Indications for use .............................................. 10
Your hearing aids .................................................12
Your charging case ..............................................13
Your power supply .............................................. 14
Let’s get started ..................................................15
Get charged up.................................................... 24
Hearing looks good on you................................. 32
Changing your eartips ........................................34
Get to know this button .....................................35
Caring for your hearing aids .............................39
You’ll need these ................................................ 47
Connecting to other devices..............................48
Warranty, return policy and repairs..................50
Important safety information .............................51
Technical specifications......................................71
Important symbols and info............................... 76
Compliance information..................................... 81
We’re here for you...............................................85

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Indications for use
The All-Day Clear Slim hearing aids are
intended for individuals 18 years or older with
perceived mild to moderate hearing loss.
The intended use of the All-Day Clear Slim
hearing aids is to amplify and transmit sound
to the ears and hereby compensate for hearing
loss. The hearing aids must only be used by
the intended person. They should not be used
by any other person as they could damage
hearing.
The charging case is intended to charge the
battery of the rechargeable hearing aids.
The All-Day Clear App is intended for
individuals 18 years or older, to set-up and/or
adjust All-Day Clear Slim hearing aids through
Android and Apple iOS smartphones.
Clinical data
In a clinical study, people with mild to
moderate hearing impairment generally
experienced a hearing benefit, when using the
All-Day Clear self-fitting technology. There
were no adverse events encountered during
this study.

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Your hearing aids
12
3
0
5
6
9
4
87
1 Push button 7 Microphones
2 Indicator light 8 Serial number plate
3 Forming wire 9 Charging contacts
4 Earpiece 0 L/R marking to
indicate left or
right hearing aid
5 Eartip
6 Receiver
21
3
4
5
Your charging case
Front
view Back view
1 Indicator light for power
2 USB-C port for charging cable
3 Space for drying capsule (sold separately
through licensed professional)
4 Cleaning brush
5 Hearing aid charging slots with left "L" /
right "R" indicators

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Your power supply
1 Wall plug
2 USB-A port for charging cable
3 USB-A plug to connect to power supply
4 USB-C plug to connect to charging case
All-Day Clear Slim ADCS1 charger
Power supply output voltage 5 VDC +/-5%, current 1 A
Charger input voltage 5 VDC +/-5%, current 500 mA
USB cable specifications 5 V min. 1 A, USB-A to USB-C,
maximum length 3 m
USB-A
USB-C
3
4
1
2
Let’s get started
First step is to download the All-Day Clear App
on your Apple®or Android smartphone. If you
have already visited a licensed professional
for your All-Day Clear Slim setup and have
downloaded the app, you are ready to go.
The All-Day-Clear app requires a Bluetooth® enabled
smartphone running at least iOS 14 or Android 8.0.
Make sure to always download the latest version of
the app for best performance, and keep your mobile
operating system up to date.
Bluetooth® is a registered trademark owned by the Bluetooth SIG, Inc
Google Play and the Google Play logo are trademarks of Google LLC.
Apple® and the Apple logo® are registered trademarks of Apple Inc.
“All-Day Clear”

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Setting up your hearing aids with the
All-Day Clear App
1. Download the All-Day Clear App.
2. Create an account. If you have already
created an account online, simply log in.
3. Accept the Data Collection Agreement, so
that your anonymized data can help improve
the app.
4. Select "set up new hearing aids", and select
"No" when asked if your hearing aids were
programmed by a hearing care professional.
(If they were, select "Yes" and follow the
instructions in the app).
5. Plug your charging case into a power source
and put your hearing aids into the charging
case. The indicator lights should blink.
6. Take your hearing aids out of the charging
case. The indicator lights will start to blink
green to indicate they are in the pairing state.
7. Next, you’ll be guided through the pairing
process for your hearing aids that will allow
for:
a. Hands-free calls and wireless music,
podcasts and audiobooks streaming
b. App connectivity – control volume and
sound modes from your phone
If you have an In-Clinic Care Package with
a hearing care professional, the app will
automatically skip to Step 10.
It is only necessary to perform the Bluetooth
pairing procedure once with your hearing
aids. After the initial pairing, your hearing aids
will connect automatically to the app. Initial
pairing process can take up to 2 minutes.
For troubleshooting support for Bluetooth
connections with your hearing aids visit:
www.sennheiser-hearing.com/alldayclear/support
The connection will be maintained as long as
your hearing aids remain on and within range.
Your hearing aids can be paired to up to two
devices and only connect to one at a time.

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8. Put on your hearing aids following the
instructions in the app, making sure your
hands and ears are clean before handling.
Make sure to choose the eartip size that feels
the most comfortable in your ear. Adjust the
forming wire for optimal fit (refer to "Hearing
looks good on you" on page 32 for detailed
instructions).
9. Follow the guided steps to set up your
sound profile, making sure to move to a
quiet space first. You’ll be asked to rate the
volume, sound clarity and balance of your
hearing aids. You can adjust your sound
profile at any time through the app settings.
If there is a significant difference in volume
between your hearing aids, you will be
advised to consult a licensed professional.
10. Allow notifications. This is a great option
to get the most out of your hearing aids.
You will receive helpful tips straight to your
smartphone. You can opt out at any time.
11. Set up is now complete. The app will guide
you to the sound control feature.