JBL Tune Flex Wireless Noise Cancelling Earbuds
WHAT’S IN THE BOX
APP
How to wear
- Try different sizes for optimal sealing and audio performance.
First time use
Power on & CONNECT
DUAL CONNECT + SYNC
CONTROLS
* Enable advanced controls by connecting your JBL Tune FLEX to the 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
Connect to a new Bluetooth device
Factory reset
DO MORE WITH THE APP
Charging
LED behaviors
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 (55 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 ohms
- Sensitivity: 108 dB SPL@1 kHz
- Maximum SPL: 92.5 dB
- Microphone sensitivity: -38 DVB/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
IC RF Exposure Information and Statement
The SAR limit of Canada (C) is 1.6 W/kg, averaging over one gram of tissue. Device types: (IC: 6132A-JBLENPEAK3) have also been tested against this SAR limit. According to this standard, the highest SAR value reported during product certification for head use is 0.99 W / kg. The device was tested for typical bodily operations where the product was kept 0 mm from the head. To maintain compliance with IC RF exposure requirements, use accessories that maintain a separation distance of 0mm between the user’s head and the back of the headset. The use of belt clips, holsters, and similar accessories shall not contain metal parts in their assembly. The use of accessories that do not meet these requirements may not comply with IC RF exposure requirements and should be avoided.
Head operation
The device was subjected to a typical head manipulation test. In order to comply with RF exposure requirements, a minimum separation distance of 0 cm must be maintained between the user’s ear and the product (including the antenna). Head exposures that do not meet these requirements may not meet RF exposure requirements and should be avoided. Use only the supplied or approved antenna.
For more manuals by JBL, visit ManualsLibraryy
JBL Tune Flex Wireless Noise Cancelling Earbuds-FAQs
How do I turn on JBL Tune Flex earbuds without the case?
If the earbuds enter standby mode, press or touch the outer surface of either earbud to reactivate them.
What is the warranty period for JBL Tune Flex?
JBL offers a 1-year warranty, covering repairs or replacements (at JBL’s discretion) for defects in materials or workmanship.
How can I improve the sound quality of my JBL Tune Flex?
Use the JBL Headphones app to adjust EQ settings.
Ensure a proper seal by trying different-sized ear tips.
Enable/disable ANC (Active Noise Cancelling) based on your preference.
Why do my JBL Tune Flex earbuds beep?
A beeping sound indicates USB-C charging protection, triggered when moisture, salt, or debris is detected in the charging port.
What is standby time, and how long do the earbuds last?
Standby time: Up to 24 hours (with case).
Playtime: ~8 hours (ANC off), ~6 hours (ANC on).
Charging time: ~2 hours for a full charge.
Can I use JBL Tune Flex while charging?
No, the earbuds cannot be used while charging in the case.
Are JBL Tune Flex earbuds sweatproof?
Yes, they have an IPX4 rating, making them resistant to sweat and light splashes.
How do I check the battery level?
LED indicators on the case:
Solid green: 100% charged.
Blinking green: Charging (above 40%).
Yellow: 20–40% battery.
Use the JBL Headphones app for precise battery status.
How do I reset or re-pair my JBL Tune Flex?
Turn off both earbuds (hold buttons for 5 seconds).
Hold both buttons for 8 seconds to enter pairing mode.
Reconnect via Bluetooth settings.
How do I enable/disable noise cancellation?
Use the touch controls (check manual for gestures).
Adjust settings in the JBL Headphones app.