User manual
Register your product and get support at:
www.philips.com/support
Headphones L4
1 Important safety instructions 2
Hearing safety 2
General information 2
2 Your Bluetooth headphones 4
What's in the box 4
Other devices 4
Overview of your Bluetooth
headphones 5
3 Get started 6
Charge the battery 6
App download 6
Pair the headphones with your
Pair the headphones with another
Bluetooth device 7
4 Use your headphones 8
Connect the headphones to your
Bluetooth device 8
Wired Connection 8
Google Fast Pair 8
Multi-point connection 9
Manage your calls and music 9
ANC/Awareness control 10
Smartphone voice assist function
(e.g. Google app, Siri) 10
Other headphones indicator status 10
Wearing Detection 10
5 Technical data 11
6 Notice 12
Declaration of conformity 12
Disposal of your old product
and battery 12
Remove the integrated battery 12
Compliance with EMF 12
Environmental information 13
Notice of compliance 13
Contents
7 Trademarks 15
8 Frequently asked questions 16
2 EN
1 Important
safety
instructions
Hearing safety
Be sure to observe the following
guidelines when using your headphones.
• Listen at reasonable volumes for
reasonable periods of time.
• Be careful not to adjust the volume
continuously upwards as your
hearing adapts.
• Do not turn up the volume so high
that you can't hear what's around
you.
• You should use caution or
temporarily discontinue use in
potentially hazardous situations.
• Excessive sound pressure from
headphones and headphones can
cause hearing loss.
• Using headphones with both ears
covered while driving is not
recommended and may be illegal in
some areas.
• For your safety, avoid distractions
from music or phone calls while in
environments.
General information
To avoid damage or malfunction:
Danger
To avoid hearing damage, limit the time you
use headphones at high volume and set the
volume to a safe level. The louder the volume,
the shorter the safe listening time is.
Caution
Do not expose headphones to excessive heat.
Do not drop your headphones.
Headphones shall not be exposed to dripping
product)
Do not allow your headphones to be
submerged in water.
Do not charge your headphones when the
connector or socket is wet.
Do not use any cleaning agents containing
alcohol, ammonia, benzene, or abrasives.
Use a clean, damp cloth to clean your
headphones - especially the sound conduits and
the microphone holes - regularly and avoid
buildup of substances such as sweat or earwax.
If any sweat or water droplets are left in the
sound conduits, air holes or microphone holes,
the sound level will temporarily drop or cut out
entirely. This is not a malfunction. Use a soft,
damp cloth to dry the headphones thoroughly.
Alternatively, remove the earbud tips, turn the
sound conduits downward and gently tap the
similar to remove any water collected inside.
Be sure the headphones are completely dry
before charging and using. Avoid using
disposable alcohol pads or other substances for
cleaning.
The integrated battery shall not be exposed to
Danger of explosion if battery is incorrectly
replaced. Replace only with the same or
equivalent type.
slot cover must be closed.
mechanically crushing or cutting a battery, can
result in an explosion.
Leaving a battery in an extremely high
temperature surrounding environment can
result in an explosion or the leakage of
A battery subjected to extremely low air
pressure may result in an explosion or the
Replacement of a battery with an incorrect type
risks severely damaging the headphones and
the battery (for example, in the case of some
lithium battery types).
If the headphones are not used for a long time,
the rechargeable battery will begin to lose its
charge. To avoid this loss, please fully charge
the battery at least once every three months.
3 EN
Operating and storage temperatures and
humidity
• Store in a place where the
temperature is between -20°C (-4°F)
and 50°C (122 °F) with up to 90%
relative humidity.
• Operate in a place where the
temperature is between 0°C (32°F)
and 45°C (113 °F) with up to 90%
relative humidity.
• Battery life may be shorter in high or
low temperature conditions.
only by external power source which output
shall comply with PS1 (with output capacity less
than 15W).
4 EN
2 Your
Bluetooth
headphones
Philips Bluetooth over-ear headphones
Philips Fidelio L4
Carrying case
Audio cable
Quick start guide
Warranty
USB-C charging cable (for charging only)
Congratulations on your purchase, and
your product at www.philips.com/support.
With the Philips over-ear headphones, you
can:
• Enjoy convenient wireless
handsfree calls
• Enjoy and control music wirelessly
• Switch between calls and music
What's in the box
Other devices
A mobile phone or device (e.g. notebook,
tablet, Bluetooth adapters, MP3 players
etc) which supports Bluetooth and is
compatible with the headphones.
5 EN
4
5
1
2
3
7
6
LR
ANC/Awareness mode button
Touch Control Panel
Voice Assistant button
LED indicator
(Power button)
USB Type C charger slot
Audio jack
1
2
3
4
5
6
7
Overview of your
Bluetooth headphones
6 EN
Connect the supplied USB charging cable
to:
• The USB type C charging slot on the
headphones;
• The charger/USB port of a computer.
Tip
Normally, a full charge takes 2 hours.
Pair the headphones with
your Bluetooth device for
LED turns white during charging and
fully charged.
3 Get started
Charge the battery
Before you use your headphones, charge the
battery for 2 hours for optimum battery
capacity and lifetime.
Use only the original USB-C charging cable to
avoid any damage.
Finish your call before charging.
Note
Scan the QR code/press 'Download'
button or search 'Philips Headphones' in
the Apple App Store or Google Play to
download the app.
The Philips Headphones App puts you in
charge of the music you are listening to.
You can customize the sound so that
your music and calling experience always
best suits your needs.
App download
Make sure that the headphones are
alternately.
Press and hold for 2 seconds to turn
on the headphones, they will be in
pairing mode and ready to connect.
The headphones remain in
pairing mode for 5 minutes.
1
2
philips.to/headapp
Get Started
7 EN
The headphones can store 4 devices in the
memory. If you try to pair more than 4 devices,
the earliest paired device will be replaced by the
new one.
Note
Pair the headphones with
another Bluetooth device
If you want to pair another Bluetooth
headphones, then press and hold for
5 seconds until the blue and white LEDs
pairing mode now and you could discover
the second device as per normal pairing.
Make sure that the Bluetooth device is
turned on and its Bluetooth feature is
activated.
The following example shows you how to
pair the headphones with your mobile
phone.
Pair the headphones with the
Bluetooth device. For detailed
information, refer to the user manual
of your Bluetooth device.
Activate the Bluetooth feature of your
mobile phone, select Philips Fidelio L4
3
4
Philips Fidelio L4
L
05"
8 EN
Wired Connection
4 Use your
headphones
Connect the headphones
to your Bluetooth device
Turn on your mobile phone/
Bluetooth device.
turn the headphones on.
The blue LED will turn on 2s.
The headphones are reconnected
to the last connected mobile
phone/ Bluetooth device
automatically.
If you turn on the mobile phone/Bluetooth
device or activate the Bluetooth feature after
turning on the headphones, you have to
reconnect the headphones and mobile phone/
Bluetooth device manually.
The function keys will be disabled when
using line-in mode.
If the headphones fail to connect to last
connected Bluetooth device within range of
3 minutes, it will change to pairing mode,
not connected to any Bluetooth device 5
minutes later.
You can also use the headphones with
the audio cable provided. Connect the
supplied audio cable to the headphones
and external audio device.
Google Fast Pair
The headphone supports Google Fast
Pair:
• Enter pairing mode of the
headphones.
• The Bluetooth of Android
smartphone should also turn on.
• The headphones will be
automatically detected by the
Android smartphone.
Philips Fidelio L4
Tap to pair. Device will be tied to
Connect
Note
1
2
Tip
Tip
9 EN
When streaming audio from device 1, receiving
a call from device 2 will automatically pause
device 1 playback. And the call will be routed
automatically to headphones.
Ending the call will automatically resume
playback from device 1.
Call control
Task
Button
Operation
Pick up/hang up
a call
Answer new call
during a call
Touch Control
Panel
Tape twice
Reject call Touch Control
Panel
Touch Control
Panel
Touch one
second
Tape twice
Reject new call
during a call
Touch Control
Panel
Touch one
second
Switch call when
answer 2 calls
Touch Control
Panel
Tape twice
Manage your calls and
music
Task Button
Turn the
headphones on
Turn the
Operation
Press and hold for 2
seconds
Press and hold for 2
seconds
The white LED is
on and fades out
Music control
Task Button Operation
Touch Control
Panel
Touch Control
Panel
Touch Control
Panel
Play or pause
music
Tape twice
Swipe up/
Swipe down
Swipe
forward
Swipe
backward
Adjust volume
Next track
Previous track
Touch Control
Panel
Multi-point connection
Pairing
• Pairing the headphones to 2 devices,
e.g. mobile phone and notebook.
Switch between device
• At anytime, only can listen to music
from 1 device. Another device will be
for phone call.
• Pause the audio from 1 device and
then start play audio from the
another device.
Note
Power on/off
10 EN
ANC/Awareness control
Task
Button
Operation
ANC ON/ANC
OFF/Awareness
mode
ANC /
Awareness
Mode button
Press once
Quick
awareness
Palm over the
right ear cup
Smartphones have to install the Google Assistant
app.
Google Assistant
Task
Button
Operation
Wake up
Google
assistant
Voice Assistant
button
Long press
and hold/talk
Cancel Google
Assistance or
Voice Assistant
button
Press twice
Playback
Voice Assistant
button
Press once
smartphone.
Smartphone voice assist
function (e.g. Google
app, Siri)
Task
Button
Operation
Wake up
smartphone
voice assist
function
Touch sensor
panel
Press once
Other headphones
indicator status
Headphones status Indicator
The headphones are
connected to a Bluetooth
device, while the
headphones in standby
mode or while you are
listening to music
The blue LED blinks
slowly
The headphones are
ready for pairing
and white alternately
The headphones are on
but not connected to a
Bluetooth device
Low battery level The white LED blinks
slowly until it is out of
power
Battery is fully charged
slowly. If no
connection can be
made, the headphones
within 5 minutes
If you do not wear the headphones more than
5 minutes, the headphones will be powered
Wearing Detection
• The music playback will be paused
wearing.
• Then, the music playback will be
resumed when you put on the
headphones.
Note
Note
Note
11 EN
5 Technical data
notice.
40 hours (ANC on)
Charging time: 2 hours
Rechargeable lithium polymer battery
(800 mAh)
Bluetooth version: 5.3
• A2DP (Advanced Audio Distribution
• AVRCP (Audio Video Remote
Graphene coated driver diameter: 40mm
Microphone for call: 2 AI mic
Operating range: Up to 10 meters
(33 feet)
Type-C USB port for charging
Supported codec: AAC, LDAC, SBC, LC3
ANC (Active Noise Canceling):
• ANC technology: Hybrid, ANC Pro+
• Adaptive ANC
• Awareness mode
Google Fast Pair
Auto pause (IR sensor)
Philips Headphones app support
Firmware updates possible
Volume control
Type of controls: Touch
Note
12 EN
6 Notice
Hereby, MMD Hong Kong Holding
Limited declares that the product is in
compliance with the essential
requirements and other relevant
provisions of RED Directive 2014/53/EU
and UK Radio Equipment Regulations SI
Declaration of Conformity on
www.philips.com/support.
Declaration of conformity
Disposal of your old
product and battery
Your product is designed and
manufactured with high quality
materials and components which can be
recycled and reused.
This symbol on a product means that the
product is covered by European Directive
2012/19/EU.
This symbol means that the product
contains a built-in rechargeable battery
covered by European Directive
2013/56/EU which cannot be disposed
of with normal household waste. We
strongly advise you to take your product
service centre to have a professional
remove the rechargeable battery. Inform
yourself about the local separate
collection system for electrical and
electronic products and rechargeable
batteries. Follow local rules and never
dispose of the product and rechargeable
batteries with normal household waste.
Correct disposal of old products and
rechargeable batteries helps prevent
negative consequences for the
environment and human health.
Remove the integrated
battery
If there is no collection/recycling system
for electronic products in your country,
you can protect the environment by
removing and recycling the battery
before disposing of the headphones.
Compliance with EMF
This product complies with all
applicable standards and regulations
regarding exposure to electromagnetic
13 EN
Environmental information
All unnecessary packaging has been
omitted. We have tried to make the
packaging easy to separate into three
materials: cardboard (box), polystyrene
protective foam sheet.)
Your system consists of materials which
can be recycled and reused if
disassembled by a specialized company.
Please observe the local regulations
regarding the disposal of packaging
materials, exhausted batteries and old
equipment.
Notice of compliance
The device complies with the FCC rules,
Part 15. Operation is subject to the
following two conditions:
1. This device may not cause harmful
interference, and
2. This device must accept any
interference received, including
interference that may cause
undesired operation.
FCC rules
This equipment has been tested and
found to comply with the limits for a
Class B digital device, pursuant to part 15
of the FCC Rules. These limits are
designed to provide reasonable
protection against harmful interference
in a residential installation. This
equipment generates, uses and can
radiate radio frequency energy and, if
not installed and used in accordance with
the instruction manual, may cause
harmful interference to radio
communications.
However, there is no guarantee that
interference will not occur in a particular
installation. If this equipment does cause
harmful interference to radio or
television reception, which can be
determined by turning the equipment
to correct the interference by one or
more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between
equipment and receiver
Connect the equipment into an outlet
the receiver is connected.
Consult the dealer or an experienced
radio/TV technician for help.
FCC Radiation Exposure Statement:
This equipment complies with FCC
radiation exposure limits set forth for an
uncontrolled environment.
This transmitter must not be co-located
or operating in conjunction with any
other antenna or transmitter.
Canada:
This device contains licence-exempt
transmitter(s)/receiver(s) that comply
with Innovation, Science and Economic
RSS(s). Operation is subject to the
following two conditions: (1) this device
may not cause harmful interference, and
(2) This device must accept any
interference received, including
interference that may cause undesired
operation of the device.
CAN ICES-003(B)/NMB-003(B)
IC Radiation Exposure Statement:
This equipment complies with Canada
radiation exposure limits set forth for
uncontrolled environments.
This transmitter must not be co-located
or operating in conjunction with any
other antenna or transmitter.
Caution:
The user is cautioned that
approved by the party responsible for
compliance could void the user's
authority to operate the equipment.
14 EN
Avis de conformité
Cet appareil satisfait aux règlements de
la FCC partie 15 du Code of Federal
Regulations. Son fonctionnement est
assujetti aux deux conditions suivantes :
1. Cet appareil ne doit pas causer
d’interférence préjudiciable et
2. l’appareil doit accepter toute
interférence reçue, y compris les
interférences qui peuvent causer un
fonctionnement non désiré.
Règlement de la FCC
Cet équipement a été testé et jugé
aux appareils numériques de la classe B,
règlement de la FCC. Ces limites ont été
raisonnable contre les interférences
résidentielle. Cet équipement génère,
utilisé conformément aux instructions,
peut causer des interférences gênantes
pour les communications radio.
Rien ne garantit toutefois que des
interférences ne surviendront pas dans
une installation particulière. Si cet
équipement cause des interférences
nuisibles pour la réception de la radio ou
de la télévision, ce qui peut être
devra essayer de corriger ces
plusieurs des opérations suivantes :
•
• Augmentez la distance entre
•
le récepteur est branché.
• Consultez le détaillant ou un
technicien de radiotélévision
expérimenté.
Canada :
Le présent appareil est conforme aux
appareils radio exempts de licence.
doit pas produire de brouillage, et (2)
tout brouillage radioélectrique subi,
compromettre le fonctionnement.
CAN ICES-003(B)/NMB-003(B)
radiations:
Cet équipement est conforme aux limites
Canada pour des environnements non
contrôlés.
Cet émetteur ne doit pas être installé au
même endroit ni utilisé avec une autre
antenne ou un autre émetteur.
15 EN
7 Trademarks
The Bluetooth® word mark and logos are
registered trademarks owned by
Bluetooth SIG, Inc. and any use of such
marks by MMD Hong Kong Holding
Limited is under license. Other
trademarks and trade names are those of
their respective owners.
Bluetooth
Siri is a trademark of Apple Inc., registered
in the U.S. and other countries.
Siri
Google and Google Play are trademarks
of Google LLC.
Google
8 Frequently
asked
questions
My Bluetooth headphones do not turn
on.
The battery level is low. Charge the
headphones.
I cannot pair my Bluetooth headphones
with my Bluetooth device.
The Bluetooth is disabled. Enable the
Bluetooth feature on your Bluetooth
device and turn on the Bluetooth device
before you turn on the headphones.
How to factory reset.
Press/hold both Power button and ANC
for 3s with USB power removed.
I hear but cannot control music on my
Bluetooth device (e.g. play/pause/skip
forward/backward).
Make sure the Bluetooth audio source
page 11).
The volume level of the headphones is
too low.
Some Bluetooth devices cannot link the
volume level with the headphones
through volume sync. In this case, you
have to adjust the volume on your
Bluetooth device independently to
achieve an appropriate volume level.
Your headphones cannot charge with
other USB cable.
The product does not support USB type C
to USB type C charging cable.
Please always use the supplied USB
charging cable (USB type A to USB type C).
16 EN
The Bluetooth device cannot �nd the
headphones.
• The headphones may be connected
the connected device or move it out
of range.
• Pairing may have been reset or the
headphones have been previously
paired with another device. Pair the
headphones with the Bluetooth
device again as described in the user
manual. (see ‘Pair the headphones
with your Bluetooth device for the
My Bluetooth headphones are
connected to a Bluetooth stereo enabled
mobile phone, but music only plays on
the mobile phone speaker.
Refer to the user manual of your mobile
phone. Select to listen to music through
the headphones.
The audio quality is poor and crackling
noise can be heard.
• The Bluetooth device is out of range.
Reduce the distance between your
headphones and Bluetooth device, or
remove obstacles between them.
• Charge your headphones.
Clean your headphones regularly.
• Use a clean, damp cloth to clean your
headphones - especially the sound
conduits and the microphone holes -
regularly and avoid buildup of
substances such as sweat or earwax.
• If any sweat or water droplets are left
in the sound conduits, air holes or
microphone holes, the sound level
will temporarily drop or cut out
entirely. This is not a malfunction. Use
a soft, damp cloth to dry the head-
phones thoroughly. Alternatively,
remove the earbud tips, turn the
sound conduits downward and gently
tap the headphones about 5 times on
a dry cloth or similar to remove any
water collected inside.
• Be sure the headphones are
completely dry before charging and
using. Avoid using disposable alcohol
pads or other substances for cleaning.
Charge your headphones regularly.
If the headphones are not used for a
long time, the rechargeable battery will
begin to lose its charge. To avoid this loss,
please fully charge the battery at least
once every three months.
17 EN
UM_Philips Fidelio L4_EN_V1.0
2023 © MMD Hong Kong Holding Limited. All rights reserved.
Philips and the Philips Shield Emblem are registered trademarks
of Koninklijke Philips N.V. and are used under license. This product
has been manufactured by and is sold under the responsibility
MMD Hong Kong Holding Limited is the warrantor in relation to this
product. All other company and product names may be trademarks
of its respective companies with which they are associated.
