TREBLAB E3 User manual

User’s manual
Please read this manual
before using the product
E3
Wireless
headphones
ACTIVE NOISE CANCELLATION
QUICK CHARGE

2
E3
1
5
2
6
4
7 8
3
1. TREBLAB E3 headphones
2. User’s manual
3. Round TREBLAB sticker
4. Carrying Case
5. Carabiner
6. Charging Type-C cable
7. 3.5 mm Audio cable
8. Insert card

3
Volume +/
PREVIOUS TRACK
Volume -/
NEXT TRACK
PHONE/PLAY/PAUSE
USB Type-C
charging port
POWER
MIC
3.5 mm AUDIO CABLE
LED
Indicator
ANC LED indicator/
PD LED indicator
ANC/ANC Off/
Environmental mode
Thank you for choosing TREBLAB E3!
The over-ear headphones with Feedforward Active Noise Cancellation technology
provide superior sound quality and the convenience of hands-free operation.

4
Function Operation
Power ON Press and hold the POWER button for 3 seconds.
Power OFF Press and hold the POWER button for 5 seconds.
Battery level Press shortly the POWER button while the headset is on.
Play/Pause Press the PHONE button.
Volume + Press shortly the Volume + button.
Volume - Press shortly the Volume - button.
Next track Press and hold the Volume - button for 1 second.
Previous track Press and hold the Volume + button for 1 second.
Answer a phone call Press shortly the PHONE button during the incoming call.
Reject a phone call Press and hold the PHONE button during the incoming
call for 1 second.
End a phone call
(Hang up) Press shortly the PHONE button during the conversation.
Redial Press the PHONE button twice.
Voice assistant
activation Press and hold the POWER button for 3 seconds.
ANC MODE Press and hold the ANC button.
Environmental
mode/ ANC OFF
When the ANC MODE is active, press shortly the ANC
button to switch to the Environmental mode and press
it shortly again to turn ANC off.

5
SETTING UP YOUR TREBLAB E3
Turn ON
àǘƵȁɐȺǞȁǐɈǘƵǘƵƊƮȺƵɈǏȌȲɈǘƵ˛ȲȺɈɈǞǿƵةȯȲƵȺȺɈǘƵPOWER button for 5 seconds
ɐȁɈǞǶɈǘƵȲƵƮm0(ȺɈƊȲɈȺ˜ƊȺǘǞȁǐخÀǘƵȁȲƵǶƵƊȺƵɈǘƵƦɐɈɈȌȁخÀǘƵƮƵɨǞƧƵɩǞǶǶǐƵɈǞȁɈȌ
pairing mode. For further use, press the POWER button for 3 seconds. You will hear
ɈǘƵٗ§ȌɩƵȲy٘ɨȌǞƧƵȯȲȌǿȯɈةƊȁƮɈǘƵȲƵƮm0(ǶǞǐǘɈɩǞǶǶȺɈƊȲɈ˜ƊȺǘǞȁǐخ
Turn OFF
Press and hold the POWER button for 5 seconds. You will hear the “Power OFF”
ɨȌǞƧƵȯȲȌǿȯɈةƊȁƮɈǘƵȲƵƮm0(ɩǞǶǶ˜ƊȺǘɈɩȌɈǞǿƵȺخ
PAIRING
Make sure TREBLAB E3 are charged and the 3.5 mm Audio cable is not plugged in.
1. Press and hold the POWER button for 3 seconds. You will hear the “Power ON”
voice prompt. Do not release the button for a few additional seconds until you
ǘƵƊȲɈǘƵٗ§ƊǞȲǞȁǐ٘ɨȌǞƧƵȯȲȌǿȯɈةƊȁƮɈǘƵm0(ɩǞǶǶȺɈƊȲɈ˜ƊȺǘǞȁǐȲƵƮǞȁƮǞƧƊɈǞȁǐɈǘƊɈ
the E3 are in pairing mode.
2. Activate Bluetooth mode on your smart device and keep it within 3 feet / 1 m from
the TREBLAB E3 while pairing.
3. Scan/search for available devices in your smart device.
4. Select the TREBLAB E3 from the list.
5. If prompted the password, enter “0000”.
6. Once the E3 are successfully paired and connected, you will hear the “Connected”
ɨȌǞƧƵȯȲȌǿȯɈةƊȁƮɈǘƵm0(ɩǞǶǶȺɈƊȲɈ˜ƊȺǘǞȁǐƦǶɐƵȺǶȌɩǶɯخ
NOTE: The TREBLAB E3 headphones can be connected to only one device
at a time.

6
To connect the E3 to the second device:
1. ²ɩǞɈƧǘȌǏǏ ǶɐƵɈȌȌɈǘǿȌƮƵȌȁɈǘƵ˛ȲȺɈƮƵɨǞƧƵɈǘƵǘƵƊƮȯǘȌȁƵȺƊȲƵƧȌȁȁƵƧɈƵƮɈȌخ
2. Repeat pairing steps 1-6 and connect the other device.
When you turn the earbuds on, they will try to reconnect with recently connected
device/devices. If the reconnection does not happen automatically, the earbuds
ɩǞǶǶ ɈȲɯ ɈȌ ˛ȁƮ ɈǘƵ ȁƵɮɈ ƮƵɨǞƧƵ Ǟȁ ɈǘƵ ȯƊǞȲǞȁǐ ǶǞȺɈخ ÀǘƵ ǘƵƊƮȯǘȌȁƵȺ ƧƊȁ ȺƊɨƵ ɐȯ
to 8 devices.
AUX-IN CONNECTION
You can connect the TREBLAB E3 to compatible devices using the supplied 3.5
mm Audio cable.
Plug the USB Type-C end of the Audio cable into the USB Type-C charging port /
AUX Line-in port on the right earcup and plug the other 3.5 mm end into the AUX
jack on your device.
NOTE: ÀǘƵǏɐȁƧɈǞȌȁȺyƵɮɈة§ȲƵɨǞȌɐȺة§ƊɐȺƵƊȁƮßȌǶɐǿƵƊȲƵȁȌɈƊɨƊǞǶƊƦǶƵɩǘƵȁɐȺ-
ing the 3.5 mm Audio cable. You will need to make all the adjustments using your
smart device.
Please keep the ANC function off while connected with a line-in audio cable.
AUDIO PLAYBACK
Bluetooth mode
To pause and resume the playback when connected wirelessly, press shortly
the PHONE button.
To adjust the volume, press shortly the Volume+ button to turn the volume up
and Volume- button to turn the volume down.

7
To change tracks on the E3, press and hold the Volume - button for 1 second
ɈȌȯǶƊɯɈǘƵȁƵɮɈɈȲƊƧDzƊȁƮȯȲƵȺȺƊȁƮǘȌǶƮɈǘƵVolume + button for 1 second to play
the previous track.
ANC FUNCTION
The TREBLAB E3 headphones feature the Feedforward Active Noise Cancellation
(ANC) technology. This technology provides the ability to not only decrease the sur-
rounding noise in ANC mode but also alternatively increase some frequencies of sur-
round sound in Environmental sound mode to hear voices when using the E3 head-
phones. These functions can be used with and without playing any music.
•To turn ON the ANC mode, press and hold the ANC button on the left earcup.
The ANC LED indicator near the button will turn green.
•To turn ON the Environmental sound, press shortly the ANC button.
•To turn OFF the ANC functions, press shortly the ANC button again.
NOTE: Please keep the deduction microphone holes on both earcups not blocked
when using the ANC/Environmental functions.

8
PHONE CALLS
The TREBLAB E3 can be used to make and receive phone calls when connected wire-
lessly. The audio playback will be paused during the calls.
*To be able to use this option, your device needs to support the multicalls management.
VOICE ASSISTANT ACTIVATION
The TREBLAB E3 headphones support the voice assistant activation command.
To use any of the voice assistants (depending on the assistant enabled on your con-
nected smart device) while in Bluetooth mode, press and hold the POWER button
ǏȌȲ׃ȺƵƧȌȁƮȺخǏɈƵȲɈǘƵȺȌɐȁƮȁȌɈǞ˛ƧƊɈǞȌȁةɯȌɐƧƊȁɈȲƊȁȺǿǞɈɯȌɐȲɨȌǞƧƵƧȌǿǿƊȁƮȺ
using an inbuilt mic.
Function Operation
To answer a call Press shortly the PHONE button.
To reject a call Press and hold the PHONE button for 3 seconds.
To end a call Press shortly the PHONE button.
To redial Press twice the PHONE button.
Multicals*
Press shortly the PHONEƦɐɈɈȌȁɈȌƊȁȺɩƵȲɈǘƵ˛ȲȺɈƧƊǶǶخàǘƵȁɈǘƵ
second one is incoming, press the PHONE button to pick it up.
ÀǘƵ˛ȲȺɈȌȁƵɩǞǶǶƵȁɈƵȲǞȁɈȌɈǘƵǘȌǶƮȌȁȺɈƊɈɐȺخ§ȲƵȺȺɈǘƵPHONE
ƦɐɈɈȌȁƊǐƊǞȁɈȌƵȁƮɈǘƵȺƵƧȌȁƮƧƊǶǶƊȁƮǐƵɈƦƊƧDzȌȁɈǘƵ˛ԥȲȺɈȌȁƵخ
Press the POWER button to end the current call.

9
TROUBLESHOOTING
Problem Solution
Doesn’t turn on
Make sure the headphones are charged.
Charge up to 1 hour until the battery is fully charged,
if necessary.
Press and hold the POWER button again for 1 second.
Music is not playing
Make sure the headphones are charged.
Make sure the 3.5 mm Audio cable is correctly and
˛ȲǿǶɯ ƧȌȁȁƵƧɈƵƮ ɈȌ ɈǘƵ ǘƵƊƮȯǘȌȁƵȺ ǞǏ ɯȌɐ ƊȲƵ ɐȺǞȁǐ
the AUX Line-In mode.
Make sure the 3.5 mm Audio cable has been removed
from the headphones if you are trying to use the Blue-
tooth connection.
Make sure the volume level is not set to a 0 level
on both the headphones and the device.
Make sure that the distance between your device
and the headphones is less than 30 feet / 10 meters.
Make sure your smart device’s Bluetooth mode
is on and not involved in any kind of wired connection.

10
Headphones don’t
pair with my
Bluetooth device
Make sure the 3.5 mm Audio cable is not plugged in.
Make sure the headphones are not paired with any other
device, as it can only pair with one device at a time.
Make sure that the distance between your device
and the headphones is less than 30 feet / 10 meters.
Make sure your smart device’s Bluetooth mode
is on and not involved in any kind of wired connection.
Headphones are
visible on my device
but do not connect
Make sure the headphones are not paired with any other
device, as it can only pair with one device at a time.
Make sure that the distance between your device
and the headphones is less than 30 feet / 10 meters.
Disconnect the device from your headphones and
remove the E3 from your device’s pairing list. Turn the
E3 off. Try to pair again using steps 1-6 from the Pairing
charter.
XƧƊȁȁȌɈ˛ȁƮ ǶɐƵɈȌȌɈǘ
on my laptop
Make sure your laptop supports the Bluetooth connec-
ɈǞȌȁخXǏǞɈƮȌƵȺȁٚɈةɯȌɐɩǞǶǶȁƵƵƮƊȁƵɮɈƵȲȁƊǶɩǞȲƵǶƵȺȺDz 
adapter compatible with your laptop. For further details,
consult with your laptop manufacturer.
Frequent
disconnection
and noise
Make sure that the distance between your device
and the headphones is less than 30 feet / 10 meters.
Make sure that nothing is blocking the signal between
your device and the E3.
Check if the music is paused. Check if the volume level
is set on both the source device and the headphones.
Check if the headphones are running out of power.

11
CHARGING AND BATTERY
TREBLAB E3 support PD quick charging protocol, so you can charge them
with your USB Type-C charger or Power Bank with quick charge. When PD quick
charge protocol is detected, you will see the ANC LED shining white.
Also, you can charge the headphones by plugging the supplied cable into the USB
Type-C charging port on the right ear-cup and the other end of the charging cord
into a standard USB port. The LED light will turn red. It takes up to 1 hour to charge
the E3 fully. The red light will turn off when the headphones are fully charged.
One full battery charge provides up to 2 days of playtime at medium volume
w/o ANC and up to 27 hours at 100% volume with the ANC activated function.
The incredible quick charge function lets you use your headphones up to 7 hours
ƊɈׁ׀׀ڭɨȌǶɐǿƵɩشȌy!ƊǏɈƵȲǯɐȺɈ׃ǿǞȁȌǏƧǘƊȲǐǞȁǐƦɯׅßشׂ ȺɈƊȁƮƊȲƮƧǘƊȲǐƵȲ
ƊȁƮƵɨƵȁǿɐƧǘǶȌȁǐƵȲɩǞɈǘ׉ßشׂةׁׂßشׁخׅȱɐǞƧDzƧǘƊȲǐƵƧǘƊȲǐƵȲخ
When the battery is running low, you will hear the “Battery Low” voice prompt.
ƵȺɐȲƵ ɈȌɐȺƵȁȌ ǶƵȺȺ ɈǘƊȁ ׅß(!ة ׂƊƮƊȯɈƵȲȌȲ ƧǘƊȲǐƵȲخÇȺǞȁǐ Ɗ ȯȌɩƵȲȺȌɐȲƧƵ
with lower power will increase the overall charging time. Unplug the E3 from
the charging cable and the cable from the power source when not in use.
If left unused, a fully charged battery will lose its charge over time.
We recommend charging the TREBLAB E3 fully at least twice a month to maintain
ɈǘƵȺɐǏ˛ƧǞƵȁɈƦƊɈɈƵȲɯǶǞǏƵخ

12
SAFETY RULES
Don’t disassemble or modify your headphones for any reason. Doing this may
cause the headphones to malfunction or become combustible.
The damage to your device can void your manufacturer’s warranty.
Do not let your device get wet – liquids can cause serious damage.
Damage to your device caused by water can void your manufacturer’s warranty.
Make sure the headset is completely dry before charging.
ɨȌǞƮ ƵɮȯȌȺǞȁǐ ɈǘƵ TREBLAB E3 ɈȌ ƵɮɈȲƵǿƵ ɈƵǿȯƵȲƊɈɐȲƵȺ ـƦƵǶȌɩ ׃ׇۑIش׃ۑ!
ȌȲƊƦȌɨƵׁׁׂۑIشׅׄۑ!فخ0ɮɈȲƵǿƵɈƵǿȯƵȲƊɈɐȲƵȺƧƊȁƧƊɐȺƵɈǘƵƮƵǏȌȲǿƊɈǞȌȁȌǏɈǘƵE3
components, reduce the battery life and the lifespan of your new headset.
Don’t put the device’s LED lights close to humans’ or animals’ eyes.
Do not use your E3 during a thunderstorm. Thunderstorms can cause serious
malfunction and increase the risk of electric shock.

13
RECYCLING
The earphones can be recycled, and they should be in order to keep our planet clean.
Where should you bring them?
In the US, there are a couple of options:
1) Best Buy has a recycling program.
hɐȺɈɈƊDzƵɈǘƵƦȲȌDzƵȁƵƊȲƦɐƮȺɩǞɈǘɯȌɐȁƵɮɈɈǞǿƵɯȌɐɨǞȺǞɈƊ ƵȺɈ ɐɯȺɈȌȲƵخ
ÀǘǞȺǶǞȁDzɩǞǶǶǘƵǶȯɯȌɐɈȌ˛ȁƮɈǘƵƦƵȺɈǶȌƧƊɈǞȌȁب
https://www.bestbuy.com/site/store-locator/
2) !ǘƵƧDzǏȌȲȌɈǘƵȲȯȌȺȺǞƦǶƵǶȌƧƊɈǞȌȁȺȁƵɮɈɈȌɯȌɐȌȁɈǘƵȺƵɩƵƦȺǞɈƵȺب
ـǯɐȺɈƵȁɈƵȲɯȌɐȲðX§ɈȌ˛ȁƮƊǶȌƧƊɈǞȌȁفب
https://www.call2recycle.org
https://search.earth911.com
ǘɈɈȯȺبششȲƵƧɯƧǶƵȁƊɈǞȌȁخƧȌǿش˛ȁƮ
https://www.cta.tech/Consumer-Resources/Greener-Gadgets
In Canada, please visit the links below:
https://thinkreuse.net
https://www.call2recycle.ca
In the UK, please visit the links below:
https://www.recycle-more.co.uk/
https://www.recyclenow.com/local-recycling

14
SPECIFICATIONS
: .
Battery: Up to 35 hours playtime (100% volume only)
Over 48 hours playtime (medium volume only)
Up to 27 hours playtime (100% volume and ANC)
Up to 7 hours playtime from 3 minutes charge
(100% volume only)
ªƵƧǘƊȲǐƵƊƦǶƵmǞٌXȌȁ׉׀׀ǿǘ׃خׇßة
XȁȯɐɈɐȯɈȌׁ׈àٌׅßشׂة׉ßشׂةׁׂßشׁخׅ
Charging time: ÇȯɈȌׁǘȌɐȲɩǞɈǘׅßشׂȺɈƊȁƮƊȲƮƧǘƊȲǐƵȲ
Voice assistant
activation:
Supported by pressing and holding the POWER
button for 3 seconds
Wireless version: Àׅخ׀ةRI§ɨׁخׇةׂ(§ɨׁخ׃ةߪ!§ɨׁخׅ
Audio playback support: AAC, SBC
Signal Range: 33 ft/10 m
Frequency response: 20 Hz–20 kHz
Charging port: USB Type-C
Dimensions: ׂ׀ׅɮׁ׈׀ɮׅׅǿǿش׈ɮׇخ׀׈ɮׂخׁ׆Ǟȁ
Weight: 270 g/9.52 oz/0.59 lb

15
THANK YOU
We truly appreciate that you chose TREBLAB as your trusted brand of wireless
ANC headphones. Our team sincerely hopes that you enjoy the great sound and
seamless usability that the TREBLAB E3 provide.
We love making our customers happy by providing true value with our products.
XǏ ǏȌȲ Ɗȁɯ ȲƵƊȺȌȁ ɯȌɐ ƊȲƵ ȁȌɈ ƧȌǿȯǶƵɈƵǶɯ ȺƊɈǞȺ˛ƵƮ ɩǞɈǘ ɯȌɐȲ ȯɐȲƧǘƊȺƵ ȌȲ ǘƊɨƵ
any questions, please let us know by contacting us at http://treblab.com/contact_us.
We care about our customers most of all and are always here to serve you!

E3
www.treblab.com
[email protected]
Made in China
WIRELESS
HEADPHONES
1 YEAR WARRANTY
Parts and Labor Warranty
Please visit www.treblab.com
to register YOUR product.
Manufactured by Productech