[Updated Version] Wireless Earbuds Bluetooth Headphones iKanzi IPX7 Waterproof 72H Cycle Play Time, 2200mAh Bluetooth 5.0 Auto Pairing Wireless Earphones Bluetooth Headset with Charging (Bright Black)

I've had these for two weeks now. I like to wait at least that long before writing a review to give me an actual chance to use the item, and I can say that so far they're definitely worth it.They came very well packaged in a sturdy box with instructions that are easy to follow. They have several different size fittings for the ear piece so that you can adjust for comfort. It also included a power cord.The ear buds fit very snug in the charger case, there's no real slop or movement in them once they're in place. The lid to the case is translucent, but dark enough that it looks like it's opaque until the lights on the earbuds or the battery indicator is on, and you can see them clearly. I like this feature because it looks sleek while maintaining functionality: you don't have to lift the lid to check your battery statuses, but someone can't see whats inside the box casually so i feel better if I leave it on my desk at work (where multiple people have had quality headphones stolen).The big thing you'll want to know about is the sound quality. I'm not an audiophile, I primarily listen to audiobooks while working both at home and at the office, and occasionally to a music on my phone or streaming service. I don't personally need to fine tune the base and the treble by decimals of a percentage to achieve the ultimate balance. I don't need to hear every last nuance of the music. SO I can't compare the sound quality on these to something like an expensive Beats or Bose headset. What I do need is to be able to not be distracted by audio distortions. To that effect, the sound quality on these are very good for my needs. There's no distortion or tinniness to them, they don't sound like you're listening to something from far away, there's no audible static or interference. Honestly, these are one of the top two headphones I've owned in regards to sound quality. I'm exceptionally happy with them in this regard.Fitting in your ear: They are bulkier than your more traditional ear bud. All the electronics are in the in-ear portion after all, as opposed to many blue tooth head phones that have a collar for the electronics. So where I could easily forget the earbuds of my LG HBS 750 (whose final death precipitated the purchase of these ear buds) while listening, THESE ones I do remain aware of the entire time they're in. I do make adjustments to how they rest in my ear several times throughout a listen, but they've never gotten so uncomfortable that I had to stop listening altogether. It took a few days of playing with the rubber tips to find the most comfort, and I currently have different sizes on each ear piece. So I'm never going to forget that these are in, but it's not often a bad sensation, and if it gets uncomfortable they're not difficult to shift around a bit until they feel better.The battery life is fantastic. I was worried about these when I purchased, because the listing says 3.5-4 hours for each ear piece. I use these at work, and I mostly work 10-12 hour shifts at night. I don't listen to something for every last minute of that time, but it's easily 7-9 hours listening time each night. Having had them for two weeks, I would say I push each ear bud closer to the 4 hour mark. While at work, I extend my listening time by using only one ear piece at a time (***YES: YOU ABSOLUTELY CAN USE EITHER EAR BUD INDIVIDUALLY***; more on that in a moment), so I get 4 hours out of one, put it back in the case, then get 4 hours out of the other, etc etc etc. Doing that, I've listened to 73 hours of audio across 5 audiobooks and only then, after 12 days, did I have to charge the main case the earbuds sit in. Note: while you can use the charging case as a power bank for your phone or other device, I have not done so yet specifically to get a good idea of how long it can go on just the earbuds.Connecting to a blue tooth device is as easy as any other blue tooth device: go to your device's bluetooth connection page, pull both ear buds out of the case, do a search on your device, select the "X9" device, and the ear buds pair. Nothing to it.BUT: that pairs both ear buds at the same time , and if you want to use only one ear bud your only option is the left one, the right won't work. If you only every want to use both at the same time, you're good to go, no need to do any more.In order to use both buds one at a time, don't setup the ear buds as I just described (which is how the instructions tell you to). Instead, follow these steps:1) Go to your device's discovery page2) Pull out the LEFT ear bud only3) Perform a search on your desired device. select the "X9" that appears4) After successfully connecting, put the left ear bud back in the case5) Wait until the device you're using registers the disconnect. At this point, "X9" should appear in your paired devices list.6) Pull out the RIGHT ear bud. It will tell you it's powering on, then say "Pairing" and beep once, then turn off.7) Long press the touch button until the ear bud says "Pairing" again and then beeps every few seconds.8) Repeat the search for blue tooth devices on your main device9) A NEW "X9" will appear in the search section, click on thatAfter the right ear bud successfully connects, you should ave two listings in your paired devices that both say "X9". One is the right bud, the other the left. Whichever bud you pull out of the case will now connect on it's own without having to pull out the other ear bud. But if you pull both out at the same time or pull the left out first, they'll STILL connect as one unit.A few things to note when using mono or switch between the two:1) If you pull out the left ear bud after connecting the right on it's own, both devices will pair separately and start to act funky. If you're using the right ear bud in mono and decide to use both in stereo, it's easier to but the right back in the case until it loses it's connection with the main device, and then pull both out at the same time to reconnect.2) If you're using the left in mono and want to go to stereo, just pull out the right and it will connect as it should.3) When using them in mono mode, you lose one aspect of the touch button functionality. Both buds will pause playback with a single tap, both buds will enter into Google Assist (and I assume Siri) mode with a long press. But a double tap on the left ear bud is your Rewind function and a double tap on the right ear bud is Fast Forward. If you've only got one of the ear buds on, you can only use that bud's double tap function. So if you're using the left bud and want to repeat a song, you can, but you'll have to use the main device controls to go forward, and vice versa when you have only the right ear bud on.4) If switching between the two in mono (like, if one ran out of battery and you want to switch to the other), wait for the one you just put back to fully disconnect from your main device before pulling out the other one. It only takes a few seconds, and sometimes when I didn't wait the new ear bud got a little quirky when it briefly connected to the other bud or my phone registered two separate devices connected at once and wasn't happy about it.And the final aspect: construction quality. These feel pretty sturdy. There's no loose components or flimsy parts, everything feels like it fits tight and is secure. The case is almost perfectly formed to the ear bud shape so they fit snug, and they're magnetically pulled to the case so that they don't shift around. They practically snap into place on the charging contacts without actually being pinched by the case. I have accidentally dropped both buds a couple of times onto my desk form a distance of 6-12", and they work exactly as they did the first time I got them. Just this morning, my toddler grabbed the case with the buds in it off the counter top, ran up to our second floor, and then before I could stop him he threw them down a full flight of carpeted stairs. After examining everything it all seems to be fine. No scratches, cracks, dents, or loos pieces. Buds were in the same place they always were and connected to my phone as normal.Hopefully, this long winded review helps anyone debating on this product. Thanks for reading!

Updated Feb-8-2019:The seller contacted me after seeing my review, and they indicated the problem I was seeing must be a manufacturingdefect. They sent me a replacement set for free.The battery and connectivity issues I'd seen before were indeed a defect. The new pair works flawlessly. I haven't used the old set in a while and have left them sitting on a desk for quite a while untouched. I just looked at them again today after having no problems with the new set, and the battery is almost completely drained on the old ones. This is definitely a connectivity problem resulting from a manufacturing defect in the original set.Old Review------------------Quick summary:These true-wireless headphones are some of the best I've ever purchased. The brand appears indistinguishable from a number of knock-off brands, but the quality on them belies any negative associations or stereotypes.Overall this is a great product and I would love to give it 5 stars. It doesn't have most gimmicky features of some of the high-end manufacturers that I would arguably have limited value for most people, but it does have perfect connectivity, audio quality matching the best in industry, and a slightly above average battery life.<strike>The only downside is that there seem to be problems with the earphones charging in the case (firmware issues possibly?) that can cause them not to charge at all and end up draining instead. If you fumble them slightly while putting them away or if you put the case into a bag to take them somewhere, they disconnect from the case and the battery drains instead of charging.</strike>Fit & Feel----The headphones themselves are very good quality. They're solid and feel like they're a quality product. They come with the standard 3 sizes of ear tips, and the tips are of the slightly thicker silicone you find on high end brands (like Jabra or Samsung) instead of the ultra-thin silicone most of the ultra-budget brands use. The charging case feels solid and nothing even feels like it will break under regular use.The headphones fit into my ears perfectly, better than any in-ear headphones I've ever owned. They form a really solid seal with the tip just into the ear canal, and the body lays perfectly in the space just outside. They're weight balanced toward the inside-side of the ear, so they also stay in amazingly well. They don't stick out from the ear very far, little enough that it's hard to tell you have them in even with fully exposed ears (no long hair). The surface with the button is what extends out the furthest from your head, and it barely exceeds how far out other parts of my ear surrounding it extend naturally. This also seems to be a key way in which they stay solidly in the ear, there's a slope on each headphone down from the button, extending toward what would be the back of your ear. That slope ensures the back edge of each headphone is narrower and can cleanly fit under the ridge in everyone's ear at the back side of the hollow. The tips themselves also exert less pressure on the ear canal that almost any other product. I've used the really expensive Jabra Elite Active 65t headphones as well, with the result of needing to take them out ever hour or so to rub my ear canal and give it a break from the pressure of the tip. Not so with these. They feel completely natural while I've done many different activities, and I've never once felt like my ear was "itchy" or feeling-the-strain. Effectively these feel like custom fit earphones that exactly conform to the lower hollow of each ear, better in fact than the custom-fit earphones I recently received from a Kickstarter campaign, and are ultra comfortable. I'd give them 6 or 7 stars for this alone if I could.Controls----The headphones use capacitive/resistive touch pads on the outside of each ear to operate as a single button. All controls occur via combinations of taps and presses of these buttons. To skip forward or back, you double tap the button on your right or left ear (right=forward, left=back), to toggle play-pause you single tap either button, for Siri/GoogleAssistant you hold either button for 2 seconds, and to change the volume up or down you press and hold the left (down) or right (up) for 3 or more seconds. While I haven't personally tried it, the controls for accepting and declining/ending calls follow the completely standard single-tap to accept the call, double tap to end or reject the call, and the call controls only apply when a call is actively coming in or you're actively on the call, overriding the conflicting music controls for that time.I was a little skeptical of how well the voice assistant would work, and how well it would differentiate the volume hold from the voice assistant hold, but they have definitely figured it out! If you're holding a button for 2 seconds, there's a brief audio tone when you hit the two second mark. If you release when you hear that tone, it will trigger your voice assistant. If you keep holding for a full additional second, it will begin changing the volume. Another thing that concerned me with the volume controls was whether it would take 3 seconds between each step of the volume I wanted to change. It's not unusual that I need to change the volume more than just one step of difference in a row. They've definitely thought of that and worked it out. After you've been holding the button for the 3 seconds, the volume will change up or down (depending on which headphone you're pressing on), but if you keep holding it will continue stepping the volume up or down another step every half-second or so. This means you can press and hold for volume up, and just keep holding for it to increase the volume continuously. No need to release, repress, and rehold for another 3 seconds.Another control they don't really mention anywhere, because you theoretically shouldn't ever need it, is how to turn the headphones on if they don't come on when removed from the charging case. There is no way to turn them off from the buttons, you can only insert them into the case, and unlike most standard bluetooth devices you don't ever have to press any buttons to put them into pairing mode so they can be found by your phone/computer. <strike>There is the occasional hiccup though if you fumble them a bit when removing them from the charging case, where they can end up removed from the case but still off.</striek> This state is pretty obvious when it happens because the normal blinking blue/red/purple lights indicating either active charging in the case or freshly removed and looking for connection aren't on at all. Pressing and holding the button on the earphone that's not on will cause it to come on as if you'd just removed it from the case.The only minor niggle I have with the controls is that I wish it where more clear when I've successfully pressed for 3 seconds and what the volume level is now. There's the short tone at 2 seconds, but it would be nice if there were another tone at 3 seconds and every time it steps the volume. If I'm listening to music the actual audio may be changing volumes naturally and have slight pauses for breaths in it, so it's not always obvious how loud the volume actually is. Many Bluetooth products I've seen will trigger an audio tone every time they change volume so you can tell how loud you've actually made it.Battery Life & Connectivity----Connection issues are definitely a thing of the past with these earphones. True-wireless headphones have classically had problems in this area, even from big name-brand manufacturers. Not so with these though. I don't know whether it's the Bluetooth 5 (which is supposed to be more stable and power efficient than previous versions while remaining backward compatible), or just very good quality firmware in their product, but these connect flawlessly to each other and my phone every time, and remain connected without any issues. I've had a few times I thought the connectivity was being spotty, but then it turned out it was actually my music app itself that was having trouble streaming. The maximum connectivity range you get with these is about the same as any mid-range-quality Bluetooth device, which means it's the higher end of the range for true-wireless headphones (which all tend to be on the low end of the maximum connectivity range). You will find that stretching the range directly impacts overall battery life though, so keeping within arm-span of your phone will give you the best battery life.The battery life on these earphones is pretty much middle-of-the-road for true-wireless headphones, coming in at 2-3 hours depending on use, volume, and distance from the source. I've used them sitting at a desk at work with my phone on the desk next to me, and I've gotten a bit above 3 hours of consistent mid-volume listening from them before they gave an audio warning the battery was getting low. I've also used them on a long run before, listening for 90 minutes at mid-to-high volume with my phone strapped to my back, and still had 40% battery left when I finished. Taking them to the gym where I set my phone on the floor next to machines/benches I'm using and occasionally walk across the room from it to grab wipe-down towels, I've gotten a low battery warning at just over 2 hours before. With these different usages I've really found that most of my use cases only need 2-3 hours of continuous usage, and there's only a rare case that I need longer. In use cases where you've stressed the battery life due to the range of the Bluetooth, you'll find that the left earphone will report a low battery before the right one. This is because the left one is the primary one that actually connects to your phone, and the right one only has to connect to the left earphone.Sound & Audio Quality----The sound quality from these earphones is on par with the most expensive true-wireless headphones from other manufacturers. Notably, this means they're mid-to-upper range on the quality for Bluetooth headphones; for some reason even Senhauser and Bose only have middling audio quality on their true-wireless headphones versus the relatively high audio quality on their regular Bluetooth headphones. I'm not an audiophile by any means, but I found these sound better than the Jabra Elite Active 65t true-wireless earphones I've also used for a while, and those cost more than 3x as much and are (currently) considered one of the best on the market.I can't really speak too much about the microphone quality of these unfortunately, I don't really use headphones for things like that (I have dedicated Plantronics devices for that instead), but the quality seems at least sufficient. I've used the Google Assistant while running next to a busy street before (mostly just to test it out), and it had no issues interpreting what I said.Single-Earphone Usage----Like almost all true-wireless headphones, one of the earphones is the master and the other is a slave. The master earphone connects to the slave earphone, as well as connecting to the phone/computer. Also like most other brands, if you want to use only a single earphone, it has to be the master one. What does stand out is that most earphones at this price point don't even include the feature to use a single earphone at all. For this product the functionality is a bit of a mixed bag, mostly because the control scheme for next/previous and volume up/down rely on the single button on each earphone having different meanings. As long as you don't want to change the volume up or skip to the next song, you can do everything else from the single earphone though, so have at it.I haven't tried cases where I was listening to music that obviously had left and right channel differences while using only a single earphone to see if it automatically plays both channel's sounds from the single earphone, but almost no manufacturers do this (from what I've read) so it seems like it would be a niche feature if they did.I also don't really use the microphones from true-wireless earphones, so I don't know if they are doing any secret-sauce audio processing related to having a mic in each earphone that could be affected by having only one earphone. This also seems incredibly unlikely since even Jabra's highest end products that claim to have amazing mic processing only do so if you have an app on installed on the phone (so it does processing on the phone and not in the earphones, something that doesn't apply to this product).Charging & The Case <strike>(Problems!)</strike>----The charging case does a good job of charging, <strike>but there seem to be some connectivity issues between the earphones and the case sometimes</strike>. The earphones fit into custom-fitted slots, and have a small magnet to ensure they align perfectly when inserted. Notably this is much better than the Jabra Elite Active 65t (3x the cost), which doesn't have any guiding magnets and have regular problems with alignment of charging pads. The case is reasonable to open the top on, it's not a fight to get it to unlatch, and the top seems to press down on the tops of the earphones slightly to ensure they stay seated properly even if the case is turned on its side or upside-down. The earphones each have a specific slow-blinking-red state of their LEDs when they're charging, so you can see when they do actually start charging, and this stops immediately when you disconnect them from the case. The case itself has a set of 3 blue LEDs that indicate the charge status of the case, and a blue LED that seems to indicate whether the earphones are charging (this last is unclear and the purpose isn't well described in the manual). If the earphones aren't inserted, the case's charge level can be checked by pushing a small button on the side, which causes the 3 LEDs to light up appropriately. The case itself charges via an included micro-USB cable, and any standard type will work. It doesn't support an quick charge types, but the battery in it is small enough that such a feature would be completely unnecessary anyway. Supposedly you can also use the case as a backup battery for other devices, and it has a regular USB port on the side for that purpose, but I've never tried it. The case itself doesn't have a very large battery compared to a phone or a regular backup battery, mostly because it doesn't need to have a very large battery to support its primary purpose of recharging the earphones multiple times before requiring recharging itself, so it seems like an unnecessary addition. While it's only stated in passing, it seems the case can also be used to update the firmware on the earphones if that ever becomes necessary, though the details on that aren't clear or explained.The battery in the recharging case has lasted a very long time for me when used exclusively to recharge the earphones. I charged the case with the earphones in it once overnight right when I got the product, and I got a huge number of recharges of the earphones out of the case before it even started indicating the battery level had been reduced. In most of my uses the earphones were only discharged to 30-40% battery life before I ended up putting them back in the case (because I was done using them for the time being), but almost a dozen uses like this happened before the first of the three battery level LEDs on the case indicated it had been drained slightly. This suggests that even with heavy use of the earphones and constant recharging in the case, you're likely to make it at least a week before you need to think about recharging your case.<strike>The real and only major problem with this product is two-fold, and has to do with the earphones charging in the case. There seems to be a firmware bug in the earphones that a rapid connect/disconnect or disconnect/reconnect from the charging case doesn't always work right. Normally this wouldn't be a problem, but because of how small and light these earphones are, it's not unusual to slightly fumble the earphones when pulling them out of the case or putting them away. When pulling them out of the case, this can cause them to think they're still in the case even though they're not, but is easily resolved by recognizing that the earphones aren't on (no lights blinking and no audio message that they're connected to each other or the phone) and pressing and holding the button on the problematic earphone for a couple seconds. When putting them back into the case however, a failure to recognize the change to charging mode causes havoc. At best you can hope for an uncharged and dead earphone when you next go to use it. At worst, it will also remain silently connected to your phone and result in seemingly inexplicable lack of audio from the phone until you either manually forget the device in the Bluetooth settings on your phone, or the battery on the earphone dies (something that will inevitably happen and leave you with a dead earphone next time you try to use it). While this slightly fumbling while putting the earphones away seems like it could easily be noticed by just watching for the LED on the earphones to change to the slow-blinking-red state indicating charging, it's exacerbated by the second problem. The case itself has to ride the fine-line between the top being loose enough to be easy for the owner to open, and being tight enough to not come loose if the case is thrown in a bag to carry somewhere. The earphones themselves are intentionally pressed up against the inner side of the top of the case when it's closed, which works very well to ensure the earphones remain pressed against the battery contacts on the case even when the case is turned upside-down. However, the latch strength of the case doesn't seem to have taken into account the pressure the earphones themselves exert on the inner side of the lid. The lid doesn't come completely open even when being bounced around inside a bag full of other things, but it does come loose enough that the earphones can become briefly disconnected from the battery contacts before the magnets in the case draw the earphones back into place. This almost always triggers the firmware bug dealing with rapid disconnect/reconnect from the charging case, which almost always causes one or more of the earphones to stop charging and sometimes connect to the phone if it's nearby.The problem with the earphones firmware causing the earphones to not charge and occasionally connect to the nearby phone unexpectedly happens frequently enough, even when I'm very careful, that I now almost always manually forget the Bluetooth pairing of the earphones on my phone whenever I'm done with them. It's also happened every time I've tried to put the case into my work bag, even in a dedicated pocket that would try to help keep the top of the case closed. It means I can't take the earphones anywhere and rely on them not having disconnected from the case and drained the battery by the time I need them.</strike>

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para ejercitarse están un poco grandes y hay que acomodarlos bien para que no se caigan. vienen varios tamaños de gomas para que uses la que necesites y aisle el sonido. la calidad de sonido no es la mejor pero no están nada mal.