Customer Ratings & Reviews

I enjoy listening to music during all my daily activities. So, I looked forward in receiving these complimentary UA JBL Sport Wireless Flex In-Ear Headphones in exchange for an honest and comprehensive review. While removing this unit out of the box the very first thing I noticed was how light this neckband is, weighing in at only 1.4 oz. The next striking feature is the Flex Zones, which are located on either side of the neckband. I can bend the Flex Zones in or outward for more comfortable fit adjustment around my neck. I can wear the neckband loosely or more firmly to match my activity. Here is what is included in the box: * UA JBL Sport Wireless Flex In-Ear Headphones Neckband Unit. * Micro USB Cable for Charging. * Quick Start Guide * Safety Sheet & Warnings. * Warranty Card * Three Extra Pairs of Silicone Ear tips – Sizes Small, Three (Medium) and Large. * One Winged and One Wingless Ear Tip Enhancer * FREE MapMyRun 12-Month Premium Membership ($30.00 Savings) - Available for download at the App Store and Google Play. SOUND QUALITY: * Bass – Nice deep and robust low frequencies. Playing various music genres the Bass seems to rumble around enough so that I definitely know it's there, but it's not overwhelming. I personally like this level of Bass, but if you want deeper, more potent Bass, these may not be for you. * Mid Range – I like the delivery of the mids. They come through distinctly and is what I expected for this JBL headphone set, which is designed for physical activity and exercise. * Highs – The Highs are more then adequate, and are clearly heard when heavy bass is not featured. The brass and strings are vibrant and clear voice has a nice crispness projection. * Channel Separation – Even at low volume sound settings I found that the stereo channel separation is quite good. **TIP** Use the largest size earbud that will fit comfortably in your ear. It not only enhances stereo channel separation, but it reduces other ambient noises in your area for better sound delivery and enjoyment, similar to passive, noise canceling. The following are the most prominent features of the JBL Sports Flex Build and Design. RUBBERIZED NECKBAND & EAR BUDS: * The UA Sport Wireless Flex has 4 buttons present on either side of the band. On the right side, are Volume/Track buttons. On the left side are the Play/Pause,Power/Pair and a Multi-function button (Run Safe LED, Mic Mute during calls and Siri/Google Now) * Run/Safe Mode – I have learned to really like this feature. It has a singular Blue LED light on the Right side of the unit along with a 5 and ½ inch LED White strip light at the very back of the neckband to help keep me safe in low light conditions.. By pressing the microphone button on the Left side the Run/Safe Mode is activated. There are three safety LED light modes. When I press once the first mode blinks the Blue LED light and neckband strip continually. Press twice and the second mode features 2 blinks 'ON' followed by 2 seconds 'OFF', repeatedly. Pressing the microphone again is the third mode which is 3 blinks 'ON' followed by 3 seconds 'OFF', repeatedly. * Magnetic Ear Buds, which snap together for easy storage. * The attached earphones have an IPX5 rating, which makes them 'sweat-proof', but not waterproof. They cannot be submerged under water. * Automatic Shutdown – After 15 minutes of inactivity the unit goes into power-saving mode. * Flex Zones – I can choose to fit my neckband loose for more comfort, or tighter for more security by adjusting the Flex bands accordingly to my particular activity. * Battery Charge With Speed Charge – It takes me approximately two hours to fully charge my unit for approximately eleven hours of continued use without the LED Run/Safe Mode. However, with Speed Charge, I get one hour of play time after only five minutes of charging. * Bluetooth Versions & Comparability - 4.1, HFP v1.6, HSP v1.2, A2DP v1.2, AVRCP v1.5 * Siri or Google Now Assist – I press my mic button for approximately 5 seconds to activate Siri to make calls, play music, etc. The same will work for Google Now. * Volume Controls (+ or -) Please remember that your Smart Phone or other mobile device sets the Master Volume Control limit for this JBL Sports Flex. * Micro USB Charging Port – Located at the back of the neckband on the bottom side. So, for the past week I have used and evaluated these headphones for the following activities: Jogging, Walking Briskly, Working Out at my Fitness Center, Working in my Garden, and Working in my Yard and Routine Household Chores. With the exception of Jogging, the neckband performed nicely. It was very uncomfortable for me wearing a T-shirt while Jogging because the neckband bounced around my neck constantly. I could not adjust the Flex Zone to make it both secure and comfortable enough to Jog. However, I tried wearing a Polo shirt with a collar while Jogging, and that made a huge difference. I was pleased with the neckband's performance for all my other activities including Working Out at the Fitness Center. The four button controls were easy to learn and operate. I was most impressed that my earbuds stayed firmly in my ear using the winged ear tips no matter what I did. DISLIKES: * There is no carrying pouch for transport or storage. * There is no way to check the battery charge level. The LED indicator on the Right side of the neckband only flashes Red when the battery is low, and, in need of a charge. NOTE – The LED remains a constant Red while charging. * There are no programmed, function announcements. * I worry that the thin wires connecting the ear buds to the neckband are pretty fragile, and may not hold up to much wear and punishment over time. I recommend these UA JBL Sport Wireless Flex In-Ear Headphones for their many features and great sound. These headphones would make a great present to any physically active family member or friends you may have on your Gift List. Because of the Jogging issues I encountered I can honestly only rate these JBL Sports Flex Headphones Four Stars.

I love the JBL sound. The headphones work great during workouts. I do not like them for everyday phone usage. They constantly disconnect and it is a process to get them reconnected. I am not used to hanging ear buds. They have a simple magnet system to connect to each other.

Under Armour and JBL are the perfect pair. These headphones are amazing and I highly recommend! If you exercise then you will definitely want to pick up a pair of these headphones because they are made especially for you! First things first for me is always comfort! I am very pleased with the comfort of the ear buds and the rest of the headphones. I normally go for completely wireless headphones but the support of these are just as great. It is light weight and if you find yourself exercising you can adjust the flex zones to fit better around your neck so that the headphones won't come off. I was able to do sit ups and they did not move. They hug my neck comfortably. Sound is another thing that is very important to me and I love it. I turned off the equalizer off of my apple music app because the sound is great without it! Also, I normally have to listen my music all the way with all other headphones and I actually have the volume slightly close to all the way. There is true noise cancellation with the volume at a reasonable level and the best part, everyone in the room can not hear what you are listening to. Also please be aware, if the ear buds are hurting your ears take them out and re-put them in your ear a different way. I have really small ears and they fit perfectly. Battery life is very impressive for me. I listened for three hours the first time and the battery symbol on my phone only went down a little bit. I am currently listening one hour in and the battery symbol is barely at the halfway mark. So at this point I would think that you can get about 8-10 hours out of these headphones out of the box. The best part that I read in the manual is that you can charge these headphones for about 5 minutes and get an hour of play. If you charge for 2 hours you should get 12 hours of play. Connectivity is very easy, turn the headphones on and turn on bluetooth on your music device and connect UA/JBL Flex. The second time I turned on the headphones it did not automatically sync but the manual says that it will remember the device it initially connect to. I am a little upset that I will have to keep my device pretty close near me when wearing the headphones. I managed to get about 10 feet and the sound started to get distorted and then it stopped playing. Its not a deal breaker but it would be nice to let my phone charge and get things done around the house or leave my phone in the car while outdoors working out or even in the gym. Extras include the lights in the back of the headphones. For all of the night or early morning runners out there there is an LED light that flashes when you turn them on. There are three settings of blinks and be careful when you hold down the mic button to activate. If you press too hard it will activate Siri/Google Now. Just lightly press and listen for the dings. One ding is slow blink, two dings slightly different blinks, three dings slightly different than the other two. Another extra is the app included with the headphones which is amazing! Get the premium account and you can do so many things with the app to include exercise tracking and it even gives you already mapped out trails to try for walking/running. Also connect with other members in the app and start a challenge. I can definitely see myself using this app during workouts and/or walks. Would I buy again and recommend to friends and family? ABSOLUTELY!

---SETUP--- The setup for the JBL headphones was quick and simple. Upon turning it on, my iPhone recognized them as “UA JBL Flex” and I was up and running in no time. ---FEATURES--- The key feature of these headphones is that they have a safety blinking LED light for outdoor running. Upon pressing the microphone button (all buttons are multi-functional), you activate 1 of 3 light modes. Each mode will cause a thin layer of white light to blink at different intervals to be noticeable by traffic/other runners while running outside in the dark. I let my wife borrow the headphones and told her to run ahead of me. I could easily see the blinking light from approximately 25 yards away. Another key feature is the flexible arms. These arms only move left or right and are meant to secure the headphones to your neck. They do they job, as not once did I feel that I might lose them while exercising. This feature is good for people with smaller neck girth, as the headphones won’t feel loose and move around during fast movement. My own neck is thick, but I was still able to wear them comfortably. ---PERFORMANCE--- The performance of these headphones is great. Comfort-wise, the pre-installed earbuds fit me just right. There are an included set of different sized earbuds for those with smaller ears. Audio-wise, I was able to hear music while exercising at a comfortable volume without distortion. These aren’t noise canceling headphones. Therefore, you will still hear background noise if it is loud enough, like a car honking or someone yelling directly at you, but the noise is muffled enough to still enjoy your audio. ---EXPECTATIONS--- The product meets my expectations. From sound to comfort level, everything feels just right except for one thing. First, the positives. The headphones are so light, I often forgot that I was wearing them throughout the day. The audio is good for the price and the safety LED light makes me feel safer when wearing them. The one thing I disliked was the way the buttons feel when pressing them. The pressing of the buttons requires more pressure than I am used to for these type of headphones. When I got a phone call, I had to press the button multiple times because I wasn’t pressing deep enough. Changing the volume requires you to press the button multiple times (as holding it moves the track forward or backward). Sometimes, my presses wouldn’t be recognized, so I had to press slightly harder. However, this is just a minor grievance in an otherwise excellent headphones set. If this concerns you, I suggest you ask to try pressing the buttons prior to purchasing, and move on from there. ---VALUE--- The price for the JBL Under Armour Sports Headphones in terms of value is affordable and competitive for similar headphones in its class. Additionally, the headset comes with a code for a 1 year subscription to MapMyRun, an Android/iOS app that helps track your exercises, which is a 30 dollar value in and of itself. ---APPROVAL--- I highly recommend this product for workout buffs or those who want a listening experience while performing fast motions. The flex arms will more than secure themselves to you or can help with adjusting the comfort level on your neck. Even when bench pressing, these won’t fall off like other headphones because of the flex arms.

JBL Sport Flex earbuds did impress me with a great sound quality for the size. They do sound like a pair of big over-the-ear headphones with a very deep bass and perfectly crisp highs. Comfortable neckband can be adjusted to fit exactly around your neck so it does not bounce around when you exercise, it's very lightweight and you hardly feel it. Earbuds are made for perfect fit, lightweight but fit secure in the ear canal providing a good sound isolation. RUNSAFE is an interesting feature of these headphones - neck band has a set of white LEDs that glow around it and you can turn them just on or make blink, it supposed to make you visible for people or vehicles behind you, how good does it work? To me they are too dim to make any noticeable difference and they should have been red, not white, please look at the picture attached. Overall - it's an amazing set for an active person, very light, secure around the neck, if you want to talk to someone - just let earbud hang on the wire (it's not like you have to keep holding a true wireless earbud in your hand). Full charge (about 2 hours of charge time) should give you 12 hours of music. On the cons side: control buttons are a bit tough (but I guess that is to prevent accidental presses), RUNSAFE LEDs on the back can't beat a high visibility running clothes in my opinion (if you are to run after dark).

I recommend this JBL ua headset, sounds good and the battery last long.

JBL - Under Armour Sport Flex Wireless In-Ear Behind-The-Neck Headphones setup is quick and easy. I was able to connect my iPhone quickly using Bluetooth. I am wearing this headphones everyday as it was so much convenient while running / biking due to long battery life around 12 hours. The headphones feel good while wearing and well built. The design protect the headphones slipping around the neck while doing workouts. The ear-buds are magnetic and it is really cool design to keep them together while not using it. The buttons are very easy to use for play, pause and volume adjustments. Another great feature is RunSafe LED which allows you to configure three flashing modes while running in the dark. It supports Bluetooth 4.1 interface to enable simple pairing and wireless streaming with compatible devices. Supports HFP, HSP, A2DP and AVRCP Bluetooth profiles. The headphones are sweat-resistant to provide protection from sweat, so you can easily wear these headphones while working out. The sound quality is amazing and this headphone is very comfortable to wear and lightweight. The battery is great and providing close to 12 hours. I was able to charge quickly. I use this headphone all day during work and workout. It is one of the best headphone owned by me and another outstanding product from JBL.

Under Armour Sport Flex Wireless In-Ear Behind-the-Neck Headphones, I was a little nervous and felt like I taking a step backwards in the way of wearable tech. The UA Flex headphones have that banana band that goes around the neck. This design isn't by any means, new to anyone who has used stereo Bluetooth headphones in the past few years, so you either love the design or hate it. So here we are with JBL pushing an old concept with the UA brand. Whatever, right? Well here's the twist. That Flex we spoke of in the name. That actually means something. There are these points on the band, that will literally bend to your will to give you a more secured fit. You can tighten or angle the band to adjust to your neck to keep it in place while putting in work( be it, at your job or in the gym. Heck, even if you're just at play, that band is gonna keep your earbuds in place to keep the tunes continually pumping through your ears. Let's talk about that continuous noise for a moment. You know what? Let's talk about it all day, as these very obedient earphones are going to keep you listening until you get where you're going. There is a 12 hour battery....Yep, I said that. 12 hour battery for continuous listening with the UA Flex. If that's not enough time to get the job done, you're may need to go with wired earphones (that is, if your phone even has a headphone jack.) Most earphones give you 8 hours of listening time, max. That's cool , but if you're giving me the option, I'm going all out for the extra 4 hours. But maybe that's just me...and everyone else. More is still more. The box houses the usual ( headphones, micro USB charging cable extra ear gummies for the right comfort. Warranty and care booklets. The sound quality is more than adequate, for my taste and the there's also little strip that glows when I go for those early jogs. I took these on a 3 mile jog when I first too them out of the box. I didn't have to change the ear gummies or charge them. they where ready to go, right out of the box. I like that. I really like that. They never once felt like they would fall out or even came loose, I'm very happy with the UA Flex from JBL. I can't recommend these enough. You've made it this far into the review, so click over and add them to your cart. I promise, you will not be disappointed. Great job JBL. These are some top notch wireless headphones.

These neckband earphones contain a lot of features that definitely make them stand out from the competition. In my opinion, the sound quality is great. It sounds nice and bassy without being overwhelming or muffling the mids and highs. The ear tips are comfortable and feature magnets that help keep the buds from flopping around. The battery quickly charged and lasted me about two days of use, both inside and outside the gym. The google assistant integration is conveniently activated by a push of a button. The safety lights are pretty decent and cool looking, however, I wouldn't trust my life to them. Overall I like them and would buy them again.

One of the best features of the JBL UA sport flex headset is the safety light across the neck band that flashes to ensure you are visible to others while on a run or walk early in the morning or late in the evening. The headset itself is pretty comfortable to wear and is light enough to forget its even there. It includes a set of ear tips that fit snuggly in the ears and provides a decent seal for a quality sound. Another great feature of the headset is the ability to work for an hour on a 5 minute charge. An excellent feature when your headset dies mid flight while watching a movie and you can quickly charge it using a portable battery. The bluetooth pairs quickly and did not lose connection when running or cycling with the phone in the pocket or on the handlebar. On a full charge the headset lasts for around 12-14 hours of use. It uses a regular micro usb port to charge. These are sweat resistant and are ideal for workouts, running or cycling. I would assume they would be somewhat splash resistant as well. The earbuds are magnetic and store away pretty nicely and are out of the way when not in use. The music controls are right on the edge and much easier to use and provide tactical feedback when the buttons are pressed. These are a perfect pair of headphones for active users as well as travelers.

There is a Constant sound of static in the headset. Regardless of the static, I can hear fine but the person on the other end is constantly saying huh.

Just had a nice jog today outside. Often with headphones I can hear outside cars driving by or I fear that I won’t be able to hear them. The neck light came in handy this evening and it’s subtle so I don’t feel ridiculous with bright green or red light blinking like those bicycles. I was pleased to see my earphones came with a subscription to MapMyRun which is Under Armour’s application for running. It is such a cool app because you can basically treat it like a social network like others. I saw which friends had the app and how they compared in my running. Charging the earphones was easy and fast. I think I charged them for five minutes and had them work for over an hour. Aesthetically they are sharp looking as well. Nice grey color and the earphones have a magnet in them so you can clasp them together to create a necklace when they aren’t hanging in your ear. JBL’s sound carries over to this joint venture with UA and it paid off. I was nervous about it being a gimmicky partnership but over all these are a good set of earphones for runner or athlete who might be new to running or working out!

Beautiful design and gread sound from JBL. I’m have been using it while doning my daily stuffs at my office and shopping. The main thing this beats other headphones in the market it stays snug in my ears and very comfortable. I don’t walk at night but the RunSafe LED is a huge benefit for visibility. Loved it!!

The Under Armour Sport Wireless Flex Bluetooth Earphones are designed to stay put during the most active workout. POSITIVE IMPRESSIONS: 1- Featuring a "Bass Forward" design that I prefer during a workout, they provide a gentle bass "thump" without wrecking the balance between high, mid & low frequencies. Bass is featured, but does not dominate the audio; this is a good thing. 2- The grey color / black wires blend & are unobtrusive. This color will not stand out in a crowd, but will not offend, either. 2- Ultra light weight design. 3- Flex feature theoretically provides an adjustable fit. In practice, I did not find the adjustability sufficient to change the already comfortable fit; perhaps you may. 4- 12 Hour rated battery life actually proved to be accurate. This is excellent! 5- Bright LED strip adds visibility at night. 6- Water resistant design with IPX5 rating (not submersible but water resistant). 7- Good wireless phone call capability; the microphone works well. 8- Micro USB charging cable is included; this is a standard connection, a smart move; you probably already have such a cable in your arsenal, so if you lose it, it is very economical & easy to find & replace. 9- I like the "enhancers" (silicone fins), but enhancers without fins are included, as well. CONCERNS: 1- The ear pieces arrive compressed so tightly in their custom foam packaging, a forceful tug on the ultra thin wire is necessary to eject them from the suffocating factory sheathe. This cannot be good for the slim wires for each earpiece. The overzealous packaging could easily cause a broken wire failure before you wear them the first time. 2- Buttons are the smallest of any headphones or earphones I have seen to date. I have size XXL hands, so I have to press the tiny controls with my fingernails. To make matters worse, they require a forceful push on their hard surfaces. 3- Spend time to try each size ear tip (Small / Medium / Large) while carefully listening to your favorite song that you know the best!! Focus on the bass. Press the earphones in toward your head. If the bass increases, try a size smaller ear tip. I tried a larger size ear tip & 10 minutes later, my ears hurt & the bass was even less. Fit is more critical to sound than any earphones I have ever worn. They are labor intensive to set up. They ship with Medium ear tips (which makes sense). I spent 30 minutes trying all ear tips listening to the same song, but when you get the right ear tips for your ears, they sound consistent; bass does not change as you press them in toward your head. No movement affects the sound. I was very disappointed with bass response when I put them in my ears for the first time. Spend (a lot of) time & you will be rewarded by balanced audio. -1 Point. 4- No Carrying Case - this is disappointing because for $129, I expect these earphones to last awhile. I am willing to go the extra effort to protect them & not throw them in a backpack or gym bag, where the emaciated wires would not stand a chance of not breaking. So how am I supposed to carry them to & from workouts? Who sells a carry pouch designed to safely protect these? After spending $129, why should I have to search for a unique carry case? 5- The wires are non retractible, unlike some Bluetooth earphones that I own. They form an unattractive large loop, connecting to the main unit that is around your neck. 6- Limited Bluetooth range. Sound dropped out 25 feet away at most & much closer if any walls or barriers are between the earphones & the phone or tablet source. What bothers me the most is when sound cuts out for a second with no barriers & the iPhone 6S Plus is sitting on my desk, 2 feet away. This happens on average, once during every other song. I consider this the biggest concern I have with these headphones. -1 Point. CONCLUSION: These Bluetooth Earphones require more set-up time and effort than any other I have owned. They offer very good sound if you are willing to put in the time. The Bluetooth signal dropping out as mentioned in Concern #6 is my biggest concern; they earn a 3-Star Rating.

I'm pretty picky when it comes to headsets period. They must be behind the neck, great sound with a good hearty bass to them, good call quality (for my work phoneridiculously comfortable, and most important they must be multipoint capable. Unfortunately this headset does not have this feature. 1. Behind the neck - check. I've had LG headsets for the longest time and I'm very used to the retractable buds. This was an adjustment for this headset but very easy to adapt to. I've also tried headsets like the Jaybird's and also the Bose Sport Wireless. They had great sound quality but wire on the neck was a deal killer for me. Every time I turned my head, the other bud was being tugged on (even at maximum length). 2. Great sound quality - check. This headset sounds freaking amazing! I really love a good bass hitting song and these dudes nailed it. Listening to songs that had a good deep bass line to them you could really hear the bump and feel the bump as well as these make a great seal in the ears 3. Call quality - check. Great call quality on this headset. A friend that I work with always complained about me sounding like garbage on my old headset. The first time I called him on this set, he noticed the difference immediately and said I sounded way better and much more clear. 4. Comfort - definitely take time to find the right size buds. I tried the buds that came on the headset out the box and they were a little too big for my ears. I used the next smaller size and they were a great fit after that. 5. Multipoint connection - That's a no go. This headset does not have multi-point capability (able to connect to two phones at the same time) which is very very disappointing seeing as the technology has been around for years now. This is an absolute must when buying a new headset as I also need to be able to take calls on my work phone as well. I love this headset and it kills me a little inside to have to return these. Overall, if you don't need multi-point, do yourself a favor and buy these. The only other complaint I would have is that the buttons are small and stiff but easy to adapt to.

Constantly says disconnected then a few seconds later connected. The answer button and volumn buttons are difficult to press which may be due to being sweat resistant. Sometimes the pause button won’t pause what im listening to. If im not listening to something for a while it will lose connection and i have to go back into my phone to the Bluetooth and disconnect and then reconnect it. The battery life is good for me as it lasts the whole day. The sound quality is good and clear. The mic doesn’t pick up background noise and people can hear me pretty well. Compared to my last headset which cost less. This one is a disappointment.

Pros: Great sound, Adjustable tightness, Ear buds stay in place, Charging port protected from sweat/moisture, and the length of charge(about 9 hours of continuous play). Cons:the earbud wires are not retractable, so are susceptible to getting caught and breaking, and no specific on/off button(it is a dual use button instead) There is not much to dislike about these headphones. I am hard on Blue Tooth headphones, so always take out the Best Buy warrantee. This was a replacement set to one I had previously and only cost $10 to replace (I had the previous set for only six months before they would not hold a charge), so get the extra protection.

I've had the Samsung gear around the neck earphones (amazing) and the level u pro (ok) but both of the left ear went bad so I got this. I've never experienced earphones this uncomfortable. I thought I'd get used to it and I just didn't. They bothered my ears a lot. I'm just one of those people it didn't work for. And I really wanted it to work for me cuz the PRICE, sound quality is really good and these headphones are really sturdy. They're not flimsy at all. You take care of them they should last you a very long time. I'm swapping them out for some over the ears headphones since the selection for in ear is very limited at the moment.

The JBL Under Armour Sport Flex has the Battery time that I need and the Sound that I like, but the problem is their small buttons that are supposed to be use as Controls. Is very difficult to distinguish one button from another without taking them off and looking directly to the headphones. And even after that, you have to deal with hard pressing them in order to put the volume up/down, turn on/off or respond to an incoming call from your phone. But if you ignore all of the controls issues, they are good headphones with a crystal clear sound.

I recently was looking for a new headset for my phone and decided to try the JBL headphones from Under Armour. I'm pleased with the sound quality and the fit for the ears. The neckband tends to bounce and move a bit but nothing too annoying. The buttons are easy to get to but a little hard to press. There's no real tactile feel to the buttons but their new so maybe that will change. Call quality is excellent and they work very well for working out and listening to music. Overall, I'm pleased despite the few little things I've mentioned.