UA Sport Wireless Flex – Engineered by JBL


Wireless neckband headphones with all-day comfort and secure fit and safety for sport

$129.95129.95 each

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Made to Move in Every Way You Do.

UA Sport Wireless Flex headphones deliver secure fit for sports and all-day comfort. Flex zones adjust to find the perfect fit no matter the activity. UA Sport Wireless Flex headphones drive your workouts thanks to their big, powerful JBL Charged Sound. And Bluetooth® wireless enables easy, cord-free connection. UA Flex headphones are sweat resistant with advanced nano coating. Stay safe after dark with the new RunSafe™ LED. A long-lasting 11-hour battery features Speed Charge to deliver an hour of playback on just five minutes’ charge. Control music, volume, calls, mute and unmute the mic when you’re in a call, and even activate Siri® or Google Now™ with a long press.


General Specifications

Headphone cable length (m) 1.0
Headphone cable length (ft) 3.3
Weight (g) 21.0
Weight (oz) 0.74
Ear tip material Silicon
Bluetooth version 4.1
Headphone cable length (cm) 100.0

Audio Specifications

Driver size (mm) 8.6
Number of drivers per ear 1.0

Control and Connection Specifications

Bluetooth profiles HFP v1.6, HSP v1.2, A2DP v1.2, AVRCP v1.5
Bluetooth transmitter power <4 dbm
Bluetooth frequency 2.402GHz-2.48GHz
Bluetooth transmitted modulation GFSK,π/4DQPSK, 8DPSK


Dynamic frequency response range (Hz) 10Hz-22kHz
Battery Type Lithium-ion polymer (3.7V, 2*100mAh)
Charging time (hours from empty) 2.0
Speed Charging time (hours) 2.0
Talk time (hours) 11+
Maximum music play time with ANC off (hours) 11+
Play time (hours) 11+


Rechargable battery Yes
4-Button Remote/ Mic Yes
In-ear neckband Yes
Speed charge Yes
JBL Charged Sound Yes
Sweat Proof Yes
Wireless Yes
Hands Free Call Yes
RunSafe LED Yes
Siri/ Google Now Yes
Flex Zone Yes
Click here for a complete list of all specs for this product

Spec Sheet (EN)

English 402 KB

Manuals & Downloads

The latest owner's manuals, quick start guides, and documents.

Search Result For ""

UA Sport Wireless Flex – Engineered by JBL is rated 3.9 out of 5 by 50.
Rated 5 out of 5 by from Excellent features Very glad to get these headphones. They are sensational.
Date published: 2019-06-10
Rated 5 out of 5 by from Highly recommended!!! Highly recommended for people who are always moving...no risk of falling off like the airpods or the likes.
Date published: 2019-06-07
Rated 5 out of 5 by from Love it I received this for Christmas and the sound is amazing. I would recommend it to anyone
Date published: 2018-12-29
Rated 5 out of 5 by from The best I've ever owned The sound quality is excellent. I work in a loud environment and all other headphones I've owned were hard to hear even in max volume. I can keep these at halfway and hear perfectly!
Date published: 2018-11-29
Rated 5 out of 5 by from Excellent They are very good they comfortable the music sound good very bass heavy with good highs the mic good excellent when talking on the phone today my first day using them at work I work 11 hours days I turn them one at 3am it’s now 8am and the battery life at 70% so far
Date published: 2018-03-22
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After non-use they shut off to save the battery, which is normal. But why does it disconnect the Bluetooth so I can&rsquo;t answer the phone with the headset. Is this normal?&nbsp;

Asked by: Mrsdeltoro
We would like to work with you directly and get more information to help you with your issue. Please submit a case request at https://www.jbl.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: Mario at Customer service
Date published: 2018-09-20

How much the headphones weigh???

Asked by: John124
This product weighs 318 grams.
Answered by: Dan E
Date published: 2018-07-08

just how waterproof is this? like, take a shower waterproof, run in the rain waterproof, or just really sweaty waterproogf

Asked by: Legio Patris
The UA Sport Wireless Flex has an IPX5+ rating which makes it resistant to sweat and moisture.
Answered by: Mario at Customer service
Date published: 2018-11-20

Is it normal for the red light to go off after a few minutes while it's plugged in to charge? How do I know how much charge it has?

Asked by: Kylesleeps
The UA Sport Wireless Flex headphones has an LED indicator near the volume control buttons, where it would start blinking red once the battery charge goes low. There is no way of knowing the exact charge of the headphones, but if you start charging your unit, the same LED indicator with show a solid red light, and will go off once the battery has been fully charged.
Answered by: Mario at Customer service
Date published: 2018-08-28

Does it have caller name announcement feature? If not please suggest product with the same feature. Thanks.

Asked by: Tush
Thank you for your question. The JBL UA Flex does not have caller name announcement, but you can manually activate Siri and speak into the microphone and have her call the contacts in your phone. If you require further assistance,please submit a case request at www.jbl.com/support-contact.html and the Customer Service team will be more than happy to further assist you.
Answered by: Mario at Customer service
Date published: 2018-02-12

What are the three options of the LED lights? Different color? Flashing? What is it?

Asked by: Eclipse
Hi! The UA Sport Wireless Flex has a&nbsp;RunSafe mode.&nbsp;It is an LED indicator to keep you safe if you are walking or running outside after dark. When you press the microphone button (located on the LEFT arm) to enable the RunSafe mode feature. The first mode blinks continually. When you press the microphone again, the second mode is initiated which features 2 blinks on followed by 2 seconds without. Pressing the microphone again is the third mode which is 3 blinks on followed by 3 seconds without.
Answered by: Nick F
Date published: 2018-03-30

can I turn off the blue LED, that flashes 2X to tell me it is connected to my phome

Asked by: mkcmax
Hi there, the light indicators can't be disabled as they're built in and is a permanent feature of the product.
Answered by: Mario at Customer service
Date published: 2019-07-08

Could I know the exact size of headphone (mm) and power consumption?

Asked by: Kenneth_Choi
This information can be seen in the products specs.
Answered by: Karl Vincent
Date published: 2018-06-06
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