Support Overview / Headphones / Bluetooth / Wireless / JBL Live Flex 3
JBL Live Flex 3

JBL Live Flex 3

True wireless noise-cancelling earbuds with open-stick design and Smart Charging Case™

Getting started with your JBL Live Flex 3

Getting started with your JBL Live Flex 3

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Product Specifications

Driver size
12 mm/ 0.47" Dynamic Driver
Power supply
5V 1A
Maximum operation temperature
45 °C
Frequency response
20 Hz - 40 kHz
Impedance
13 ohm
Sensitivity
100 dB SPL@1 kHz
Maximum SPL
95 dB
Earbud
4.5 g per pc (9.0 g combined)/0.0099 lbs per pc (0.0198 lbs combined)
Charging case
63.7 g/ 0.1404 lbs
Microphone sensitivity
-38 dBV/Pa@1 kHz
Bluetooth version (Earbud)
5.3
Bluetooth version (Charging case)
5.1
Bluetooth profile version
HFP
Bluetooth transmitter frequency range
2.4 GHz - 2.4835 GHz
Bluetooth transmitter power (Earbud)
<9 dBm (EIRP)
Bluetooth transmitter power (Charging case)
<10 dBm (EIRP)
Bluetooth transmitter modulation (Earbud)
GFSK, π/4-DQPSK, 8-DPSK
Bluetooth transmitter modulation (Charging case)
GFSK
Earbud battery type
Lithium-ion battery (50 mAh/ 3.85 V)
Charging case battery type
Lithium-ion battery (690 mAh/ 3.85 V)
Charging time
2 hrs from empty
Music playtime with BT on and ANC off
Up to 10 hrs
Music playtime with BT on and ANC on
Up to 7 hrs
Music playtime with BT on and True Adaptive ANC on
Up to 6.5 hrs
Talk time with ANC off
Up to 5 hrs

Make your day sound amazing

Get customized sound without even looking at your phone. Use the controls on the Smart Charging Case™ of the JBL Live Flex 3 true wireless noise-cancelling open-stick earbuds with Hi-Res Audio to customize all their features without opening the JBL app on your device. Adjust volume and EQ, control your music, take phone calls, see messages—you can even customize the screensaver with your favorite photos. And that’s before you get to enjoy the monumental JBL Signature Sound of the Live Flex 3 earbuds themselves. Best-in-class True Adaptive Noise Cancelling tunes out distractions. JBL Spatial Sound makes movies and music truly immersive. And if you have to take a call, 6 mics ensure perfect sound quality even in the noisiest surroundings. All this, plus a 50-hour charge: 10 hours in the buds* and another 40 in the case—and they can charge wirelessly. The charging case features a loop to attach a lanyard for even more convenience. Great sound has never been simpler. (*with ANC off)

The JBL Live Flex 3's 12mm dynamic drivers are perfectly tuned to deliver deep bass, balanced mid-range, and refined high frequencies—all at any volume level. JBL Spatial Sound makes you feel like you're at a concert as the sound comes from virtually everywhere around you. This is JBL Signature Sound at its best.
You can customize every aspect of your JBL Live Flex 3 earbuds with the 1.45-inch touchscreen display on the Smart Charging Case™. The display gives you full control of your sound on any devices - laptop, TV, smartphones, or tablets -, without needing to access the JBL App on your smartphone.
Tune out the outside world entirely or customize just how much ambient sound you decide to let in, with four noise-sensing mics that automatically adapt to your surroundings in real time. The audio compensation filter in the JBL Headphones App even allows you to customize and fine-tune the Adaptive Noise Cancelling level to your ear canal's unique shape.
Enjoy 10 hours of playtime, plus another 40 in the charging case.* Need to recharge even faster? 10 minutes on a USB type-C charging cable will give you another four hours of playtime. You can also recharge them wirelessly. (*with ANC off)
Six beamforming microphones reduce wind and noise interference, so your words always come through loud and clear. A voice equalizer and voice level optimizer give you full control not only over how you sound to others, but how loud they sound to you.
Switch effortlessly from one Bluetooth device to another, so if you're watching a video on your tablet, you still won't miss a call on your phone.
With the Google Finder service, if you ever misplace your earbuds, a network of over 3 million Android devices will automatically help you find it. With Google Audio Switch, the earbuds seamlessly swap from one Android Bluetooth® device to another. Jump from a video on your tablet to a call on your mobile phone, and never miss a moment.
From the beach to the bike trail, the JBL Live Flex 3 earbuds are water resistant for all your outdoor adventures.
Personalize the soundtrack of your life. Just download the free JBL Headphones app to customize the way you listen. Adjust the Adaptive Noise Cancelling to your ears' shape, create a Relax playlist to help you chill out, check your best fit, or find your earbuds. You can also choose your preferred voice assistant, change how the earbuds behave through gesture customization, or adapt the sound output to audio or video to get the most out of your content—plus much more.
Hear and feel every note of your playlist. Shape your audio to match your personal listening profile with interactive customization tools that use precise information about you and your preferences to provide the exact sound curve that suits you best.

FAQs & How-Tos

2 results
  • Can I use the JBL Headphones app and Smart case or Smart Tx at the same time?

    Yes, both the Smart case and the Smart Tx are synched wirelessly to the headphones and can be used simultaneously.

  • What to do if the TWS headphones only work in Mono mode?

    Make sure both headphones are fully charged to ensure that the issue is not due to one of the earbuds lacking power.

    Check that the contact points on the headphones and the charging case are clear of dirt, so the issue is not due to the product not being able to charge.

    The LED on the headphones will show a blue light when correctly inserted in the charging case.

    Try to reset the headphones if the product is fully charged but are still only working in Mono mode.

    A reset guide for the headphones can be found here: Reset guide

Images & Videos

  • JBL Live Flex 3 - Black - True wireless noise-cancelling open-stick earbuds - Hero
  • JBL Live Flex 3 - Black - True wireless noise-cancelling open-stick earbuds - Front
  • JBL Live Flex 3 - Black - True wireless noise-cancelling open-stick earbuds - Left
  • JBL Live Flex 3 - Black - True wireless noise-cancelling open-stick earbuds - Right
  • JBL Live Flex 3 - Black - True wireless noise-cancelling open-stick earbuds - Detailshot 1
  • JBL Live Flex 3 - Black - True wireless noise-cancelling open-stick earbuds - Detailshot 2
  • JBL Live Flex 3 - Black - True wireless noise-cancelling open-stick earbuds - Detailshot 3
  • JBL Live Flex 3 - Black - True wireless noise-cancelling open-stick earbuds - Detailshot 4
  • JBL Live Flex 3 - Black - True wireless noise-cancelling open-stick earbuds - Detailshot 5
  • JBL Live Flex 3 - Black - True wireless noise-cancelling open-stick earbuds - Detailshot 6
  • JBL Live Flex 3 - Black - True wireless noise-cancelling open-stick earbuds - Detailshot 7
  • JBL Live Flex 3 - Black - True wireless noise-cancelling open-stick earbuds - Detailshot 15

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