Tune Flex - Earphones HARMAN KARDON - Free user manual and instructions
Find the device manual for free Tune Flex HARMAN KARDON in PDF.
| Product Type | True Wireless Stereo Earbuds |
| Model | Tune Flex |
| Driver Size | 12 mm Dynamic |
| Frequency Response | 20 Hz – 20 kHz |
| Impedance | 32 ohms |
| Sensitivity | 108 dB SPL @ 1 kHz |
| Maximum SPL | 92.5 dB |
| Microphone Sensitivity | -38 dBV/Pa @ 1 kHz |
| Bluetooth Version | 5.2 |
| Bluetooth Profiles | A2DP V1.3, AVRCP V1.6, HFP V1.7 |
| Bluetooth Transmitter Power | < 10 dBm |
| Battery Type (Earbuds) | Lithium-ion polymer 54 mAh / 3.85 V |
| Battery Type (Charging Case) | Lithium-ion polymer 570 mAh / 3.85 V |
| Charging Time | < 2 hours |
| Music Playtime (ANC Off) | Up to 8 hours |
| Music Playtime (ANC On) | Up to 6 hours |
| Talk Time | 4.5 hours |
| Weight (Earbud) | 4.8 g per earbud |
| Weight (Charging Case) | 38.6 g |
| Water Resistance | Not specified (assume IPX4 splash proof typical) |
| Active Noise Cancellation | Yes (ANC) with Ambient Aware and TalkThru |
| Controls | Touch controls: tap (1x,2x,3x) and hold |
| Voice Assistant | Compatible with Google Assistant, Siri, and Bixby (via app) |
| App Support | JBL Headphones app (Android & iOS) |
| Operating Temperature | Up to 45°C |
| Safety Warnings | Do not open, service, or disassemble battery. Do not short circuit. Dispose of batteries properly. |
| Spare Parts & Repairability | Ear tips included in multiple sizes. Battery replacement not recommended. |
Frequently Asked Questions - Tune Flex HARMAN KARDON
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USER MANUAL Tune Flex HARMAN KARDON
XS
[OPEN EAR TIPS]
S/M/L
(SEALING EAR TIPS)
SCAN ME



APP


JBL HEADPHONES
GET EVEN MORE CONTROL AND PERSONALIZATION OF YOUR LISTENING EXPERIENCE WITH THIS FREE APP.




HOW TO WEAR
1 TRY DIFFERENT SIZES FOR OPTIMAL SEALING AND AUDIO PERFORMANCE. * EAR TIP SOUND SETTINGS AVAILABLE IN THE APP
FIRST TIME USE


POWER
ON &
CONNECT






OTHERS ANDROID™ 6.0+



CHOOSE "JBL TUNE FLEX" TO CONNECT



Fast Pair
DUAL CONNECT + SYNC


STEREO MODE

L/R
MONO MODE

CONTROLS
• TAP × 1
•• TAP × 2
••• TAP × 3
— HOLD [2]


* ENABLE ADVANCED CONTROLS BY CONNECTING YOUR JBL TUNE FLEX TO JBL HEADPHONES APP
** ENABLE YOUR VOICE ASSISTANT THROUGH JBL HEADPHONES APP AND ASSIGN IT TO YOUR PREFERRED EARBUD (L/R).
*** SELECT THE EAR TIPS YOU ARE USING FOR THE BEST SOUND PERFORMANCE.
VOICEAWARE



POWER OFF


MANUAL SETUP

![graph LR A["L/RL/R"] --> B["Bluetooth"] B --> C["Smartphone"] C --> D["Factory RESET Connect to a New Bluetooth Device"] D --> E["JBL"]](/content/2026/05/1099379/images/3ed6eb6f224def395c317c92daa49229f2d3d2a48588d3b91be04d93ebbcecba.jpg)
FACTORY RESET CONNECT TO A NEW BLUETOOTH DEVICE
DO MORE WITH THE APP





*ONLY AVAILABLE ON ANDROID™
CHARGING



LED BEHAVIORS




BT CONNECTING


BT CONNECTED


BT NOT CONNECTED


FACTORY RESET





LOW BATTERY




CHARGING




FULLY CHARGED
TECH SPEC
Model: TUNE FLEX
Driver size: 12 mm/0.472" Dynamic Driver
Power supply: 5V
1A
Earbud:
4.8 g per pc (9.6 g combined)/
0.0105822 lbs per pc (0.021 lbs combined)
Charging case: 38.6 g/ 0.085 lbs
Earbud battery type: Lithium-ion polymer (54 mAh/ 3.85 V)
Charging case battery type: Lithium-ion polymer (570 mAh/ 3.85 V)
Charging time: < 2 hrs from empty
Talk time: 4.5 hrs
Music playtime with BT on
and ANC off: up to 8 hrs
Music playtime with BT on
and ANC on: up to 6 hrs
Frequency response: 20 Hz – 20 kHz
Impedance: 32 ohm
Sensitivity: 108 dB SPL@1 kHz
Maximum SPL: 92.5 dB
Microphone sensitivity: -38 dBV/Pa@1 kHz
Bluetooth version: 5.2
Bluetooth profile version: A2DP V1.3, AVRCP V1.6, HFP V1.7
Bluetooth transmitter
frequency range: 2.4 GHz - 2.4835 GHz
Bluetooth transmitter
power: <10 dBm
Bluetooth transmitter
modulation: GFSK, π/4-DQPSK, 8DPSK
Maximum operation
temperature: 45 °C

FR
CONTENU DE LA BOÎTE
(Embouts ouverts) (Embouts isolants)
APPLICATION
ANC (Aktives Noise-Cancelling)*
Ambient Aware
(Umgebungsbewusst)*
Bluetooth profile version: A2DP V1.3, AVRCP V1.6, HFP V1.7
A2DP V1.3, AVRCP V1.6, HFP V1.7
2.4 GHz - 2.4835 GHz
<10 dBm
GFSK, π/4-DQPSK, 8DPSK
45°C

BOX CONTENTS
A2DP V1.3, AVRCP V1.6, HFP V1.7
GFSK, π/4-DQPSK, 8DPSK
FI
PACKAGE CONTENTS
LED INDICATOR FUNCTIONS
Bluetooth profile version: A2DP V1.3, AVRCP V1.6, HFP V1.7
Bluetooth transmitter frequency range: 2.4 GHz - 2.4835 GHz
A2DP V1.3, AVRCP V1.6, HFP V1.7
Bluetooth transmitter
connecting your JBL TUNE FLEX
0.0105822 lbs elk (0.021 lbs samen)
∅repropper Sound settings***
Voice assistants**
* Activate advanced controls by
MANUAL CONFIGURATION
Connect a new Bluetooth device
Reset to
factory settings
DO MORE WITH THE APP
Bluetooth profile version: A2DP V1.3, AVRCP V1.6, HFP V1.7
Frequency range for
Bluetooth transmitter: 2.4 GHz – 2.4835 GHz
Bluetooth transmitter power: <10 dBm
Bluetooth transmitter modulation: GFSK, π/4-DQPSK, 8DPSK
A2DP V1.3, AVRCP V1.6, HFP V1.7
Ambient Aware (Ambient
Awareness)
Talkthru*
A2DP V1.3, AVRCP V1.6, HFP V1.7
2.4 GHz - 2.4835 GHz
<10 dBm
GFSK, π/4-DQPSK, 8DPSK
45°C
Items in the box
(Open-type ear tips)
(Sealed-type ear tips)
App
With this free app, you can better control and
personalize your listening experience.
How to wear
Try different sizes to achieve the perfect
seal and sound quality.
*Ear tips available in the app
Sound settings
First use
Power on and connect
Other
Android™ 6.0+
Select "JBL TUNEFLEX" to
connect
Dual Connect + Sync
Spatial Sound Mode
Mono Mode
Control Button
Tap | Press and Hold
ANC (Active Noise Cancelling)*
Ambient Aware
TalkThru*
Bixby/Siri®/Other
Ear Tip Sound Settings***
Voice Assistant**
*Enable advanced controls by connecting your JBL TUNE FLEX
to the JBL Headphones app.
**Through the JBL Headphones app
**Through the JBL Headphones app**
Activate your voice assistant,
then assign it to the earbud of your choice
(left/right).
Choose the appropriate ear tips for the best sound experience.
VOICEAWARE
Power off
Manual setup
Connect to a new Bluetooth device
Factory reset
Do more with this app
Charging status
LED status
Bluetooth connecting
Bluetooth connected
Bluetooth connected
Bluetooth not connected
Factory reset
Battery low
Charging
Fully charged
Technical specifications
Model: TUNE FLEX
0.0105822 lbs each (0.021 lbs for both)
Charging case: 38.6 g / 0.085 lbs
38.6 g / 0.085 lbs
OTHER APP USES
*Only available on Android™. MENGICLDAVA
MENGIST DAYA
LED PATTERN
BT connecting
BT connected
BT not connected
One side 0.0105822 lbs (both sides 0.021 lbs)
A2DP V1.3, AVRCP V1.6, HFP V1.7
** JBL Headphones 30000
Voice Assistant
Frequency response: 20 Hz – 20 kHz
Impedance: 32 ohm
Sensitivity: 108 dB SPL@1 kHz
Maximum SPL: 92.5 dB
Microphone sensitivity: -38 dBV/Pa@1 kHz
Bluetooth version: 5.2
Bluetooth profile version:
A2DP V1.3, AVRCP V1.6, HFP V1.7
Bluetooth transmitter frequency
range: 2.4 GHz - 2.4835 GHz
Bluetooth transmitter power:
<10 dBm
Bluetooth transmitter modulation:
GFSK, π/4-DQPSK, 8DPSK
DO NOT ATTEMPT TO OPEN, SERVICE, OR DISASSEMBLE THE BATTERY | DO NOT SHORT CIRCUIT | MAY EXPLODE IF DISPOSED OF IN FIRE | RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE | DISPOSE OR RECYCLE USED BATTERIES ACCORDING TO THE INSTRUCTIONS
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by HARMAN International Industries, Incorporated is under license. Other trademarks and trade names are those of their respective owners.

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HP_JBL_TUNE FLEX_QSG_Global_SOP_V18