Massively layered sound
587337
Very amazing headphones, easy to manipulate and demonstrate on first attempt. It not only cancels external noise, but it also amplifies the sound in the headphones with in-built volume control.
184259
First, let me say that these do sound immensely better than the stock earbuds that came with my Zen, and they do a great job at noise isolation.  To my ears, however, they are quite bass-heavy, with the bass being indistinct at that.  As much as I wanted to like them, I have found myself wanting to hear more of my music and shall be looking into other IEMs to suit.
656872
These are great headphones for audiophiles that are looking for details, finese and a great soundstage. The materials & finish are really high class. They are a bit heavy, though. Personally I needed a little bit more bass, but I paired them with a Fiio Q1 DAC with bass booster, using native FLAC on my Samsung S8 via USB, and now the sound is really exceptional for my taste, having the best of both worlds: Detail retrieval and bass with no distortion at all. I find these headphones really hard to match with other competitors playing at the same league. No contest!
1762284
Wow. The sound/quality of this system is so much higher than priced it's blowing my mind. Volume, clarity(very low distortion at high levels) and bass produced by the subwoofer are comparable to MUCH higher priced hardware. BUY!!
4456755
sound is very distorted.  I don't remember the recording on my first album sounding like it was being played too loud through a practice amp, and my system in the 80s was no where near the quality that I have now.  it sounds as though it was mastered too loud.  great album but difficult to listen too this way.
539120
Granted, the sound is amazing. Granted, Kevin Shields is an unbelievable guitarist. Granted, Bilinda Butcher's voice is gorgeous. But...

...but half of these songs either suck, don't make an impression, or are just plain unremarkable. I mean, a couple songs really suck, which automatically disqualifies a 5-star rating. "When You Sleep" has one of the worst hooks I've ever heard in my life - it sounds like incidental music from a particularly bad knockoff of "The Legend of Zelda" - and "I Only Said" sounds like "When You Sleep Part II" except with a better rhythm, and while that does improve it, it doesn't improve it much. I can't remember a damn thing about "What You Want," other than the fact that I didn't like it very much, and Debbie Googe's awesome and heavier-than-hell distorted bass on "Come In Alone" doesn't change the fact that the song itself is totally, completely run-of-the-mill average. "Blown A Wish" is all right, but the Bilinda Butcher vocal hook gets annoying after a while, especially since you can't ever understand what anyone is singing on this record anyway, so it just sounds like a repeated vocal noise, which isn't that interesting to listen to repeated ad infinitum.

But...half the songs kick ass. I mean, really kick ass. "Only Shallow" is an astounding opening rocker that, despite it's Bonham-heavy drumming, is submerged under the deluge of Shields' and Butcher's massive guitars. The druggy sexual haze is mind-boggling, and this song is brilliant. "Loomer" and "Touched" follow, and they too are fantastic. No drums, so nothing to distract us from the brain-melting guitar sound. These textures and black-on-white-on-pink-noise sound structures are really something to hear. "To Here Knows When" has drumbeats way, way, way off in the distance, and the textures here enfold your eardrums like some kind of combination of radio static and silk. Absolutely gorgeous stuff. Without drums again, "Sometimes" is one of the album's true highlights, hooked to an emotional and well-written melody, which makes the insane guitar textures that much more great. And then there's "Soon." One of the great singles of the '90's. Easily the best song here, "Soon" is - unbelievable. That's all. Dance beats begin the song, then the heavy-pink-noise-MBV-guitars come in, and then...oh...that bassline...simply, again, unbelievable.

But no matter how great a song "Soon" is - and it is a truly, breathtakingly great song - that really doesn't change the fact that this LP is grossly overrated and that half of it is a near-total washout. Which is a huge bummer to say, but...that's the way I feel about it.
600633
In my excitement of getting this CD I made the mistake of listening to it on my work PC speakers.  It was nice, but nothing stellar.  I then listened to it on my high-quality earphones.  Much better.  Then I got it home and  listened on my stereo (built specifically for good bass response).  Wow!  The louder it gets, the better it gets.  The depth of sound is remarkable,  and you can easily lose yourself in it.  Yet at any moment you can pick out  each and every instrument playing, and follow its contribution to the  whole.  I've listened to it more times than can be considered reasonable,  and am still finding riffs, melodies, and rhythms I missed before.  I'm  certain I'll hear more when I set up my system for surround sound again,  and because of this CD, that time will be very soon.
1799085
WHAT. WHAT ON EARTH.

Absolutely incredible. The sensitivity of the high trebles and mids just UNBELIEVABLE. The bass is a tad bit muddy and on the softer side, but I'm a guy who enjoys a deep V-sound and strong bass anyway.

Absolutely incredible sound. You need to buy these at this cheaper price, before they realize what these IEM's are actually worth.
1986949
I use the same playlist every time I review a pair of headphones so that I have a baseline for what I expect to hear. The sound quality is hard for me to explain. The bass is deep and rich. The vocals come through very clear, more than expected. The instruments are clear, you can hear and differentiate each instrument. Individually the sounds are good, but its like they aren't meshing together in perfect harmony. Its almost like theres an echo or the each earbud isn't properly synced. Its very hard to identify what is off, but something about the sound is off. I can also hear a very faint static or white noise all the time. It's more obvious in between songs but you can hear it during songs.

The Bluetooth range is lower than expected. On a fully charged battery I can make it to my living room before they lose connection. This is three rooms away. When the battery is lower if I walk more than about 2 yards away from my device the audio starts to cutout. At three yards away the audio is almost gone entirely. With other Bluetooth headphones I can walk around my entire apartment without losing signal at all.

Earbuds should generally be self explanatory regarding how to put them on. Previously Id never understood why manufactures labeled the earbuds left and right. It was always blatantly obvious to me. These earbuds are hard to find the proper orientation. FSLs Reflex Bluetooth Sports Earbuds aren't labeled left and right. If you own these and need help figuring it out right had the inline microphone and volume control. It doesnt help that the owners manual is poorly written. For instance there is a chart labeling each item on the earbuds but no key to identify the labels.

The cord of these earbuds is designed to go over your ear. But the loop on the cord is too big for my ears. This will at times cause the earbuds to fall out. Once I get them in right they feel better than any earbuds Ive ever used. I typically don't like earbuds. They are normally too big for my ears and the pressure is uncomfortable. These are very comfortable.

Overall if I were purchasing earbuds I wouldnt go with FSLs Reflex Bluetooth Sports Earbuds. Out of all the earbuds Ive reviewed I would purchase Vitality Hi-Fi Bluetooth Headphones by Pulseaudio. You can red my Pulseaudio review by clicking my profile link.

TL;DR

PROS:
Long Battery Life
Comfortable
Noise Cancelling better than expected

CONS:
Loop on the over ear cord is too big
Sound quality is off
Bass quality differs song to song
Earbud orientation is hard to figure out (not labeled)
Bluetooth quality not on par with other earbuds

Ratings (Out of five stars):
Comfort: *4*
Cord Length: *3*
Noise Cancelling: *4*
Sound Quality: *2*
Bass: *3*
Battery Life: *5*
Ease of use: *3*
Bluetooth Quality: *3*

Overall rating:  27 out of 40 stars / 3.3 Star Average

I hope you enjoyed this Reflex Bluetooth Sports Earbuds review. If you have have questions about my FSLs Reflex Bluetooth Sports Earbuds experience please leave me a comment. I will be happy to follow up on my experience.

I received this product complimentary from FSL  for quality testing purposes; all opinions expressed are my own.
4277322
I am listening to this little powerhouse right now and the richness of sound and full, deep bass has me truly amazed. I cannot believe all this sound is coming out of this teeny tiny little cylinder. Incredible!!
1293279
Until recently, my experience with music was mostly limited to twenty dollar earbuds. In short, these headphones really blew me away. I didn't know music could sound this good! Specifically, the bass is incredible. The first time I used these headphones, the bass was so intense for me, I felt like my spine was rattling. I let a friend of mine borrow them, and now they keep wanting to use them!

Some people might prefer wireless headphones in this day and age, but I actually prefer that these are wired, because that's what I'm used to. They're pretty big, but they fit comfortably and snugly over my ears. And they stay comfortable, even for a long period of time (the padded band helps!). They cancel out a lot of background noise too, which is good.

If I had one complaint, it's that they're a little bit heavy. Also, they're a little large for my head. They're adjustable, but even at the smallest size, they have a tendency to slip off when I look down. Still, this is just a minor inconvenience and certainly not a deal breaker, since these make my music sound so much better!
1977846
Superb sound. No matter what sound board/PC or expensive notebook you may have, this will make a profound, eye-opening different. The regular computer headphone jack will ALWAYS suck compared to this beauty. I have AKG Q701s and oh boy they deliver when plugged to this. As people already reported, the connections a bit fragile, so be careful. The AKG sounds head-to-head with my old beloved B&W matrix speakers. GREAT.
2054727
When I first fired these up I was psyched... so much sound from two little boxes with exceptional bass! But after awhile of listening to various types of audio you will find that the highs are there, but they are overwhelmed and squashed down by the bass and lower midrange. So when you are listening to a voiceover let's say, the voice is behind the music and effects. I guess you would say that the wonderful "brightness" is missing. A little bit "tanky" and "muddy".
4727452
Everything that isn't high treble (8khz+) sounds like mud.  Vocals are deformed and the mid/bass paradigm is one androgynous blob of sound.  Do not waste $200 on these. Go look at the Golden Ears frequency response curve and you'll see what I'm hearing.
3789913
I didn't think headphones could sound like this. The one thing that is extremely hard to reproduce accurately without a powered subwoofer is bass. These do an amazing job, I have other high quality headphones that had decent bass (Sennheiser to name one brand), nothing has come close. There is almost TOO much bass with it on max amplification. If you've ever been in a car with high-quality subs, this is a similar experience and can give you a headache from the pressure.

So far even with the amp off they sound pretty good with most music types. I will tell you that the quality of the music source/file will become very evident with these headphones (poor audio files vs high quality will become that more apparent). I like all kinds of music, and so I was impressed at how versatile these are.

Even with the amp/bass on max, voices can be heard cleanly, and there is not any distortion.

So far by category I've broken it down:
Rap/Hip Hop/RnB/Dance: 5 stars
Dubstep: 5 stars
Rock: 4 Stars (Snare drums are not is tight sounding as they should be, guitar and kick sound great).
Country: 5 stars
Classical Guitar: 4 stars (very clean sounding, but not as clear as I've heard on other headphones)
Soul: 5 stars
Contemporary: 4 stars (Not sure why snare drums come up again, but they aren't as tight sounding).

Movies: 5 stars + (was amazed)
Gaming: 5 stars + (really brings game to life).

They are very comfortable to wear, but for longer periods of use I'd probably leave amp on medium, as the pressure can make your ears feel stuffy (as in when you change altitudes too fast).
20399
Sounds like a 78rpm transfer using a cactus needle.  Five minutes was all I could take.  Music itself?  Couldn't tell.  My ears hurt.
261296
The soundstage and clarity is quite breathtaking -- instrument and voice separation is perfect and expansive, and yet the total sum is a cohesive unit of musical sound; the best I've heard at this price, perhaps even competing with the much more expensive Paradigm S6 towers I heard a while back (though with a fair amount less bass quantity in a 2.0 setup). I enjoy the sound signature of these speakers more than any B&W speakers I've heard, even the $10,000+ speakers. Of course that's extremely subjective, but these speakers definitely suit me very well. Your tastes may certainly vary, but the DALI's are worth a listen. Comparable in sound signature to the Sennheiser HD650 headphones with a good DAC and tube amp, but with perhaps a bit more emphasis on the treble and wider sound stage. The treble is beautifully defined and is never fatiguing, even in near-field listening. The mids are fluid and crunch when needed for rock, liquid smooth when needed for other music. The bass is tight, accurate, and punchy down to the rated 53 Hz. I have these speakers paired with an SVS SB-1000 subwoofer for extra bottom end to the 20+ Hz range. They blend very well with that sub at a crossover of about 90 Hz. I had the speakers for a few weeks before the sub, however, and the sound was just so impressive. For information's sake: PC --> Little Dot DAC_1 (USB) --> Yamaha A-S301 --> DALI ZENSOR 1/SVS SB-1000.