KNZ Technology KNZSNDFLXUVL Soundflux Dual-Driver Truly Wireless in-Ear Stereo Headphones (Violet)

I've been looking for a pair of headphones that I could use on my commute or when I walk my dog. They aren't intrusive or large and fit comfortably in my ear. I have no complaints with them falling out or being misplaced. A little inconvenient sometimes if you put them in the case because they sometimes get jumbled around, but not always so it's not really a deal breaker for me.they look great and the sound is good considering the price, I've bought expensive headphones before and have been let down. these are a decent price and the sound quality is perfect for me. i don't always use the features they advertised, but when I'm at the park and someone is trying to talk to me its convenient because i don't have to take my headphones out.overall i think they are a good buy, yes you can get cheaper headphones out there but they wont last after a couple of uses and they're usually all basic vanilla with no added features. i would say spend a little more to get something of good quality that will last and you don't have to spend a couple hundred dollars on it.i can't speak for indiegogo but the pair i received are great and i have no complaints.

Comfortable fit once you pick the right size earbuds. Sound quality is good, but not outstanding. Bass could be stronger, but for the price, pretty nice.

I strongly advise against getting these below. However, if you insist on getting them anyway, at least save yourself some money and buy these on Amazon for quite a bit less money:As you'll read below, I strongly advise against buying these. However, if you are still dead set on buying these, at least save $$$ and buy these here on Amazon much cheaper:https://smile.amazon.com/Wireless-BlitzWolf-Bluetooth-Charging-Headphones/dp/B07RWMCJ9L/ref=sr_1_9?crid=2K6YV21I4D18T&keywords=dual+driver+earbuds&qid=1560299577&s=gateway&sprefix=dual+a+earbuds%2Caps%2C141&sr=8-9#customerReviewsNow for the review....I bought these on Indigogo and there is so much wrong with them it's almost hard to know where to begin, but if there's one good thing that can come from my purchase, it's to spare other people from making the same mistake. And while there are only a few reviews for the Soundflux here, you can head over to the Indigogo page where these were originally listed and be overwhelmed by a tsunami of Soundflux owners venting their hate. Here, in no particular order, are the negatives:1) HUGE latency. Yea, they're Bluetooth 5, but I tried them with a Galaxy S9 and the SoundFlux is unusable with video the latency is so bad2) Battery life is bad, I get about 2 hours listening to music at moderate volume. I'm guessing that those 2 drivers KNZ touts suck down the battery3) Sound distorts at moderate volume levels. Again, I'm guessing the 2 drivers are the culprit -- I suspect KNZ didn't beef up the amps in the earbuds to accommodate 2 drivers4) Sound itself feels flat -- there's more to creating a stirring soundstage than just adding more drivers, and KNZ missed the mark.5) Notice how KNZ says these use a lossless codec without telling you which one? That's because it isn't aptX.6) For some reason I can't fathom, the case has an on/off button on it, and if this button is accidentally pressed then the earbuds turn on...in the case. Idiotic. So forget about putting this case in your pocket because if that on/off button is accidentally pressed you'll drain the earbuds and, possibly even worse, have them sync with your phone.7) The earbuds aren't magnetically clamped against the charging contacts in the case so that, one, they often don't charge and, two, when they lose contact they turn on...in the case...and begin discharging. Brilliant. So the very first thing you'd need to do is insert a small piece of padded tape to clamp these down in the case. Nothing I like more than repairing a brand new product with a critical design flaw that should have been fixed in early beta testing...8) Each earbud has a little blinking light. That wouldn't be so bad if there were some way to turn it off...but there isn't. So aside from making you look like an idiot, you will keep flashing lights at the person next to you in bed if you use these at night. Really, there are so many moronic design elements on these it's like KNZ **tried** to design a terrible product.Save your money and look elsewhere. There are now tons of Bluetooth earbuds at and even below this price point that are vastly better.** UPDATE: It seems there's nowhere to go but DOWN with these. For some insane reason, these routinely turn themselves on WHILE IN THE CHARGING CASE! I've discovered them randomly syncing with my devices while charging, and this nonsense also drains them even when you think they are off. What madness of design even makes it possible for an earbud to play while charging???? It's the same design idiocy that put an on/off switch on the charging case to begin with. Every other sensible earbud automatically turns off and charges when inserted in the case....but not these.PROOF OF HOW MUCH I HATE THESE: If you actually made it this far in my review, I will GIVE you my Soundflux FOR FREE, just pay for the shipping....probably about $5. Drop me a note: freeknz (AT) prin.be if you're interested.

These are phenomenal dual driver headphones. Not sure what others are listening to.These sound far better than my Apple air pods and are on par with my more expensive sennheiser wiireless headphones.Do your self a favor and pick up a pair.

I chose these, because I bought a pair of wired headphones that used these drivers, which sounded pretty good.What I like about them is that they have adequate bass without it sounding boomy and irritating.They sound just fine paired to my Pixel 3a. I haven't had them long enough to know if the charging issues are a problem. I'm wondering if the problems are caused by older phones with older, slower Bluetooth, and you are just not getting a full resolution bandwidth.I have had a problem with this before with my car. I had a cheap Android phone, my roommate had a very new iPhone, and his sounded considerably better on Bluetooth than my crap phone. My Bluetooth was a whole version down from the one supported on his phone. I suspect the Pixel 3a will be fine too in my car as it is sounding pretty clean on these.

I'm a cyclist and I bought these specifically to wear on rides and untether myself from standard earbuds. The claimed battery life is 4-5 hours. The most I've ever gotten out of them is two hours and 1-1/2 is more typical. The charging system is weird: it seems like they will discharge after a while even when left in the charger. I actually got them to send me a replacement set, which improved absolutely nothing. Since then their customer service has been atrocious. Months ago they gave me some blather about a vaporware fix for the battery issue that never materialized. They don't provide a phone number to call and they've stopped responding to requests via email, Facebook and the so-called customer support page on their web site. It seems like they took all that IndieGogo money and ran with it. The kicker is that these actually sound quite good — as long as you only want to listen to them for about the length of one CD.