Under Armour® True Wireless Flash – Engineered by JBL®



£159.99159.99 each
Product Actions
Add to cart options

In stock. Estimated delivery time 2-4 business days

Wireless freedom to push yourself further

UA True Wireless Flash offers a truly cord-free experience to push yourself further. The UA waterproof technology and Sport Flex Fit ear tips were crafted specifically for all condition training while the JBL Charged Sound was boldly optimized and tuned for motivation. Hear your surroundings with Bionic Hearing featuring TalkThru Technology to quickly interact with your workout partner, and AmbientAware Technology to hear your surroundings for increased safety. With a total of 25 hours battery life and a durable aluminum charging case, these headphones truly break the limits.


General Specifications

Weight (g) 16
Weight (oz) 0.56
Ear tip material Silicon
Bluetooth version 4.2

Audio Specifications

Driver size (mm) 5.8
Number of drivers per ear 1.0
Driver sensitivity at 1kHz/1mW (dB) 95dB
Impedance (ohms) 14.0

Control and Connection Specifications

Bluetooth profiles A2DP V1.3, AVRCP V1.5, HFP V1.6
Bluetooth transmitter power <9.5 dbm
Bluetooth frequency 2.402GHz - 2.48GHz
Bluetooth transmitted modulation GFSK, π/4DQPSK, 8DPSK


Dynamic frequency response range (Hz) 20Hz-22kHz
Battery Type Lithium-ion polymer (3.7V,85*2mAh)
Charging time (hours from empty) 2.0
Speed Charging time (hours) 2.0
Talk time (hours) 5.0
Maximum music play time with ANC off (hours) 5+20
Play time (hours) 5.0


Rechargable battery Yes
Remote control on ear cups? Yes
In-ear Yes
Charging case Yes
Speed charge No
JBL Charged Sound Yes
Bulit-in Microphone Yes
UA STORM Proof Yes
True Wireless Yes
Hands Free Call Yes
TalkThru Yes
Ambient Aware Yes
Carrying case Yes
Siri/ Google Now Yes
Bixby No
  • 1 x True Wireless Flash in-ear sport headphone
  • 1 x Protective sport charging case
  • 1 x Micro USB cable
  • 1 x Quick start guide
  • 1 x Safety sheet
  • 1 x Warranty card
  • 12-Month MapMyRun Premium membership
  • 3 Sizes of ear tips
  • 3 Sized of winged ear tip enhancers

Manuals & Downloads

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

Search Result For ""

Under Armour® True Wireless Flash – Engineered by JBL® is rated 4.2 out of 5 by 68.
Rated 5 out of 5 by from UA Headphones These headphones are the best true wireless I have owned. The headphones have great features and controls. They are perfect for running, biking, and lifting. They stay snug your ears and the sound quality is great.
Date published: 2019-06-13
Rated 5 out of 5 by from Great fit and sound I was looking for a replacement for my Bose wireless sound sport earbuds which had great sound, but proved unreliable (after some time they stop working which I think is due to sweat / moisture during workout and this was the same with multiple replacements). I read reviews (user reviews are best as they give the real experience) for most leading true wireless earbuds and most appear to have connectivity issues / dropouts between left and right. Then I came across under armour true wireless. On the basis of the reviews (and good YouTube ones as well) I went for these. I have used them for over a month now and can say that overall they are great, especially for sport / running (the main purpose I bought them). Positives and negatives are below. Positives far outweigh the negatives (which are bearable but could be improved). Positives: - sound (for the type of earbud it’s great with good bass and overall quality. I noticed that sound improves depending how good you fit it and seal within the ear. The sound is not as good as good around the ear headphones, but for this type it’s about 8.5/10). - ambience noise etc (you don’t hear anything outside in normal mode, but there is an ambient mode if you want to hear around you). - great fit (they never feel like they are coming out and they have different buds for S/M/L). - water resistance rating is better than most other brands (essential for longevity if using for sports). - wireless / connectivity is great (I have hardly had any issues / dropouts at all). - battery life (4-5 hours comfortably plus the charging case means you don’t have to charge with external power for a long time). - wireless talking (I could hear the other person and they could hear me clearly with minimal background noise when I was in a noisy airport). Negatives: - sound lag between audio and video (this isn’t much of an issue for me as I don’t primarily use for watching video etc, however there is a slight delay (it’s almost bearable but noticeable), maybe because of Bluetooth version, hence if your primary aim is for sports or audio then you will have no issue. If primary use is video then you may want to consider something else). - lack of volume control (you have to adjust volume from your device which is ok most times but can be a pain). - no rewind / previous track option (only play, pause, skip forward). - buttons (you have to press in quite firmly i.e. for play/pause etc, which pushes in to the ear. It would be better to have based on touch tap.
Date published: 2019-06-05
Rated 5 out of 5 by from Pure Excellence in Wireless Advancement I have had these for approximately two weeks. It has been a wonderful two weeks of wireless experience and I put these to test.. The packaging is on par with much more expensive high end headphones. First impression, the headphones seemed large and heavy. One, however, should never judge a book by the cover. They paired seamlessly with both my iPhone and Android. I charged them and went for a job in the evening. It began to rain and I was hesitant to leave them in but I did. They performed flawlessly through several miles of light rain. I have jogged countless miles, worked out and used them around the house without a single issue. During the first few minutes they felt like a naturally addition to my ear. The weight was not an issue as the fit was perfect. The headphones come with multiple options for fit regarding the earpieces. The sound quality was quite impressive and on par with some much more expensive over the ear headphones. The bass was unexpectedly clear for a true wireless in ear headphone set. As well, the charging station/carrying case is a stroke of brilliance. It makes for easy charging, transport and protection of the headphones when you toss them in your gym bag. This is a great product that I would highly recommend. If you have had issues with fit issues and sound quality, I urge you to try the True Wireless Flash.
Date published: 2019-06-04
Rated 5 out of 5 by from Beyond Pleased! When I first received these, I wasn't sure what I thought. This is my first pair of truly wireless ear buds. The seemed a little large or chunky, but with the advertised battery life, they need to be. One I found the right size match for my ear, which is medium for the hook, and small for the bud, I barely noticed them! The sound is great and has a full range. The bionic hearing is pretty cool, since you don't need to remove them to hear someone/something. I highly recommend these.
Date published: 2019-06-04
Rated 5 out of 5 by from Top Shelf Ear Buds These headphones are far better than I would have ever imagined. Something about a parternship with under armor just seemed gimmicy to me at first. But this has far exceeded all my expectations. The sound quality is on par with other top tier brands, delivering a warm mids, punchy lows and crystal highs. No tinniness or redlining like experienced in so many other low to mid tiered headphones.
Date published: 2019-05-29
  • y_2019, m_6, d_14, h_21
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_68
  • loc_en_GB, sid_uatruewirelessflash, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_jbl

How does this compared to the jabra elite 65t

Asked by: GavinKillerz
I have both. I would say that the sound quality is similar, as good as my Beats over the ear headphone. Bass is a little better with JBL. You can use the equalizer in Jabra, not in the JBL. JBL really stays in place all the time, even when running pace 4. Controls are better placed in the JBL. My guess is that if you are looking for something related to sports you should go for JBL.
Answered by: Soni76
Date published: 2019-02-21

Charging Port

Is the charging port USB type C or Micro USB ?
Asked by: Roybit
The UA True Wireless Headphones feature a Micro USB charging port.
Answered by: UAExpert
Date published: 2019-01-18

can i answer phone calls and talk on the phone with these?

Asked by: FRANKMO
Yes, you can answer phone calls with the UA Flash and you can talk with the built in microphone. You can answer/end calls by tapping the UA symbol on the side of the riht ear bud.
Answered by: LCard
Date published: 2019-01-25

Are you able to swim with these?

Asked by: KMT4
IPX7 grading, which ensures 30 minutes listening at one metre of depth. I haven't tried mine in a pool yet. I would probably spend a little more time getting the correct sizing on the ear buds to ensure a tight seal before trying. Also you can't store any music in the headphones either, so you would need your phone to be within Bluetooth range. So theoretically it could work for a pool workout with your phone nearby, not open-water unless you also had a waterproof phone case attached to you.
Answered by: crswartz
Date published: 2019-01-25

Do they work for calls

Asked by: Lonso68
Hi! The UA True Wireless Flash do work for calls.
Answered by: Rhae
Date published: 2019-02-13

How does this compare to the Samsung IconX 2018?

Asked by: acruzlu
these are just excellent. for me far better than IconX
Answered by: tioma7
Date published: 2019-01-11

What are the controls like on the earbuds? Volume, skip tracks, answers calls?

Please describe all the controls the earbuds have.
Asked by: Jayda18
The right earbud controls the playback as well as accepting/denying a phone call. There is no volume control options on the headphones, the volume must be controlled by the device.
Answered by: CJEL
Date published: 2019-01-25


Do both earbuds have a mic or just one?
Asked by: Bballer4life
The right earphone is equipped with a microphone.
Answered by: UAExpert
Date published: 2019-02-08
  • y_2019, m_6, d_14, h_21CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.12
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_48
  • loc_en_GB, sid_uatruewirelessflash, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_jbl