YINYOO Easy KZ ZST Colorful Hybrid Banlance Armature with Dynamic in-Ear Earphone 1BA+1DD HiFi Headset KZ in Ear Monitors Headphones Wired Earbuds IEM Earphones Gaming Earbuds (Colorful Without mic)

What I was looking for: After accidentally buying some IEM's without knowing what it was (TNSO) (last picture), I was determined to find another pair. I couldn't get the same ones (went unavailable), and didn't know what to look for. When I finally stumbled upon more, I was plagued with trying to find some that had balanced sound. As someone looking to produce music, I didn't want anything filtered. The best ones actually were cheaper than this but wouldn't be able to hold up more than a few days. Why I chose these: It seemed like I was going to have to settle with some elevated bass. With the reviews as good as any on these, the price, replaceable cord (thought it'd be cheaper to just buy a whole new pair), I decided to get them. Sound Quality & Bass: My ears aren't well trained. But I had some help learning about headphones with balanced sounds, and got recommended some headphones in my budget that many producers use (pretty much only producers from the looks of those reviews). I got them, was testing them out, and pitting them up against these earbuds. I was shocked at how similar the quality was. Only difference is that I could then tell the elevated bass, which this definitely does have. Probably not to the liking of those who want super elevated. While I don't even like it myself, it doesn't bother me with these. So if you want super elevated, these probably aren't for you. But I can say that these might be the most accurate to sound you can get for casual use. Which is what these are for, I use them for casual listening, internet scrolling, and video sharing skype calls with my bestie. I pop the more professional headphones for working. I almost felt bad though for getting the headphones when these were so similar. The elevated bass was definitely a problem, but if not for that, I probably could've gotten away using these for producing too. No joke. But it probably will be better to produce with headphones rather than earbuds. The 3d illusions are more immersive. But truly I think I could just use these had it not been for the bass, I wouldn't have known that before though. Noise Cancelling: I think the noise cancelling on the accidental IEMs were some of the best, people could be talking less than a foot away from me & me not even know they were there until the song ended. I don't think that's happened with these, but I don't have trouble with hearing external noise over them. I don't always listen to loud stuff but I do a lot of scrolling on Instagram, tik tok, or listening to K-pop, which is all pretty full & busy sounds. So I'm good on that. Longevity: I'm over a year in now, got these November 24th 2021 (first 2 pictures), It's November 30th 2022 now (3rd picture). They're holding up good. I think the cord has changed color, the clear plastic, from food stains most likely. I've had no issues with the in ears, and the cord seems like it's doing just fine. It tangles pretty good. It's not hard to untangle but the part that bends over the ears makes it difficult. I don't find that deterring. I think the way these cords are made, are just less likely to have issues. And it's really an unbeatable price for sound quality at $17 when I bought them, even if they only last a year or two. I suspect these will hold up longer than any I've had. Around 2 years has been my max before, and around that 2 year mark I've had duct tape on the cord to hang on a little longer. If I can update in a year, I'll try to do so.

When I bought these in '18 I was merely looking for a pair of headphones that were inexpensive. I had no idea what IEMs were. My frame of references were: the OEMs that came with iPhones I had before and the Samsung AKGs that I traded up to later, and a handful of other budget headphones and wired earbuds from various companies. For $20 these outperformed anything I've owned up to that point. As if it took all the great bass, mid, and treble elements from every headphone/earbud I liked, removed all the elements I disliked, and put them into this thing. I couldn't believe it. How did these earbuds sound better and cost less than all the sound pieces I've bought before? Who the heck is KZ? I would later come to find out that this very IEM would become the starting line of the great budget IEM race. Fast forward 6 years. Tozo, Soundpeats, Anker, Moondrop, 7Hz, Dunu, etc. have saturated the IEM market with their offerings with a range of prices to compete with and even outperform tech giants. You know the ones. Some even have endorsements and collaborations from audiophile YouTubers. Even with all of these new products and the innovations made since this product came into the market, the KZ ZST still holds it's own as a go-to option. With 14K reviews and counting, The KZ ZST has become the template and baseline for all other IEMs to follow. That said, downsides: Cables: The fact it has cables is a con in this day and age. It wasn't an issue 5-6 years ago because smartphones still had headphone jacks. The cables went kaput after 2 years of everyday use. I thankfully bought upgraded IEM cables just in case and are what's attached to the ZSTs now. I haven't used the ZST after I got other IEMs and wireless earbuds in 2021 but I tested the ZST recently. It still works and sounds better. Build: The earbuds casings broke at the seams when I replaced the broken cables. They did snap back together and held together when retested them. For $20 it's not a big issue. Features: It plays sounds...and that's about it. No active noise cancelling. It's wired so tangles are a thing. Sound: I repeat this is subjective. Your own mileage will vary. Volume: Great. Plenty loud. It has drivers and that helps in out in that department. Bass: Great. It's not terribly aggressive and I prefer it that way. Mids: Clear vocals and instruments. Treble: Bright. Can get sibilant in some ranges. I maintain a score of 5 after six years of ownership. If you have a need for a wired $20 IEM that has stood the test of time, then these are still a good pick among MANY options.

I see a lot of reviews talking about things I don't understand such as mix boards and numbers. For those of you who are also wondering if these things are too complicated for them, they work GREAT AS JUST HEADPHONES. That's what I used them for. I got the one with the mic attachment for Skype and Zoom meetings, as well as YouTube videos, and use them in my android phone for music. There is one con I have them and that's putting these things together. It took three people to find the tiny little L and R, in both the headphones and the cord. I'll admit, the headphones were easy to figure out. They fit extremely well in the ear, and match the shape perfectly. The problem was the wires. If you plug it in wrong, they still work. The only way we were able to figure it out is by knowing the microphone is on the right side. Which is weird, because that means the faint logo printed on the white wire holder (what brings the two hanging headphone wires and makes them into one wire to plug in) faces you. You would think they would want that outward, facing other people, but I guess you can't see it anyway without looking at it, which is what at first confused us in the puzzle to figure out which wire went to which headphone. Finally, some one was able to see the badly placed, almost invisible clear bump that kind of looked like an L, and when we looked really hard on the other one, you could make out that was an R. A really stubborn friend was determined to find the L and R on the headphones themselves, and finally found it. You can also kind of make out an L, in a really bad spot, but once you figure out where it is, and you hunt around the same spot, the R is a little easier to see. I would also fix how you would know the right direction of the plug, as those nodes are very delicate, and getting the whole thing backwards and fumbling around with that fit, to unplug and replug those same delicate nodes is a bit... frustrating. I should also add that they have very little bass sound, at least for me. And this is coming from someone who can't have a high bass sound due to hearing issues. It's almost non-existent, and even I like some kinda bass. Personally, I would urge the company to fix, at least the Left/Right markings on the headphones and wires. I understand, based on reviews, I might be a niche user, simply using these to play music and do Zoom calls. But I found these looking for standard in ear headphones, and I like the ones that have the wire go over the ears. Other than this issue, the headphones are great. I'm not sure if they have bluetooth capabilities? There's no way to charge them, but it's the only thing I can think of when I wonder why I would need to affix them to their own plug to begin with. It certainly didn't come with anything else to suggest it, but I did get it with the microphone attachment. Tho, again, not sure why one wouldn't include some way to charge if it had the Bluetooth option. If it doesn't, perhaps the company could look into actually selling the headphones already attached to their wire. It's weird I would have to put it together on my own. Then again, I appear to be a niche user for these. Anyway, those who read this far, I definitely recommend them for normal headphone use. The sound is crisp, the microphone works great, they are comfortable in and around the ear, come with multiple options for ear sizing, the sound proofing for normal use is great, you don't even feel them in the ear, mine haven't slipped once. The cord is a great length and long, but not so long you're getting tangled up in it. It's reinforced wire, so durable (definitely needed if you have cats). I got the rainbowish color, which looks nice. Not that I base my headphone color on my outfit, but I got a compliment from some one about how I looked with them, which is weird, yet nice to hear. TL;DR: I got the ones with the microphone and I use them for standard headphone stuff: YouTube videos, Zoom/Skype calls, Android music listening. Hard to figure out which wire goes to the left and right headphone, as the marks are virtually non-existent without good lighting and friends with EXCELLENT eyesight. However, pro-tip, the microphone is on the right wire. While the headphones themselves perfectly fit the ear it needs to be in, for those that need absolute confirmation, that's another hunt all together. The bass is almost non-existent to me, which, even as some one who doesn't like too much bass, it's really bad. Overall, I'm extremely happy with the purchase, the sound is great, clear, the microphone as well

These plugged into my phone with no drama, and the sound hit way harder than I expected for something this cheap. The bass has some punch without getting muddy, and the highs stay clear enough that voices and details come through clean. They sit comfortably in the ear, so I can wear them for a while without feeling like my ears are filing HR complaints. The cable feels sturdier than the usual budget earbuds, and the inline controls actually respond when you press them. The mic is decent for calls and does not make you sound like you are trapped in a cereal box. For everyday listening, gym use, or random Zoom calls, they hold their own without trying too hard.

High quality is where you find it.n These are the best wired earbuds I've ever heard. An audiophile's dream (especially in this price range!): the frequency response (20,000hz - 40,000hz) is spectacular and absolutely SPARKLES in the high-end, and the low-end bass is powerful and accurate, never overwhelming. Functionality, compatibility, cord length/connectivity and the build quality are all A+. Oh yeah, and last but not least: they are as pretty to look at as they are to listen to (I selected the purple/blue) I'm beyond satisfied with this stellar purchase!

I'm a drummer and they still work perfectly, with a great sound! I'm thinking on purchasing the Bluetooth engagement to use them with my phone.

Easy KZ ZST Colorful Hybrid Banlance Armature with Dynamic In-ear Earphone 1BA+1DD Hifi Headset (colorful ZST MIC) I have slowly been buying and testing out these so-called Chi-Fi IEMs. It first started when my friend turned me on to the MEE earbuds. Went progressively up from the low-cost Sports oriented then on to the more exotic material casing and drivers including my first pair of armature driven IEMs. I then discovered Xiaomi and 1More when they became the talk of the town with dual and triple drivers. While the experience has been progressively more positive with each discovery, it was still mostly dependent on word of mouth and through American marketing presence that I come to discover them. That is until I discovered the website audiobudget.com and the matter of fact review of all the wonderful Chi-Fi name brands that I have never heard of, with ZST being one of them. I have had my eyes on the KZ ZST for some time and when the opportunity came up for a good deal and fast Prime shipping, I ordered one. You see, part of the love of Chi-Fi is the patience to wait for a very long time for orders to arrive on a slow boat from China (literally and metaphorically). Regarding the ZST itself: As is with all IEMs, a lot of the factors are personal and subjective. We all vary in the physiology of our ears as well as our personal style and application of (any) technology. Subjective issues like fit and ergonomics will vary by the person. In the case of ZST, I will say that it is unnecessarily large design in the sense that if there was ever a concept of a pair of "statement" IEMs, these are them, in conjunction with the colorful neon magenta, blue, and silver color scheme. You can't miss seeing them worn though I have seen worse, too, much worse... I will state that I have had many others with just as good or better audio performance IEMs that are significantly smaller thus much easier to wear for my puny ear canal cavity. When it comes to audio quality, these are definitely at the upper end of the spectrum of Chi-Fi IEMs. There is a slight V and I think that is a plus as, again, subjectively, I think a truly flat sound is just that, flat and unexciting. With the ZST, the highs are clear without the fatiguing sibilance. The mids are not much recessed so in conjunction with the non-piercing highs produce warm vocals. The bass is adequate without the risk of most people identifying you as a bass head a-la Beats products. It has almost tight enough mid-bass without an overwhelming sub-bass (I'm a tight mid-bass snob, so that is actually a compliment). The audio performance putting these smack in the middle of a good daily performer that is usable on all genre with classical being on one end and EDM the other of the spectrum. We can not discuss audio quality without discussing the IEM tips. After the driver and tuning, they are the single most important portion of the IEM that enables the product to work as a whole. You see, without the tip forming a proper seal, you will be missing out on a majority of the quality aural waveforms that the IEMs require in order to perform as designed. An analogy I heard from one of the audio test sites is imagining a pair of headphone on your head (or actually put one on). Most of us have experienced this in that, on some (most) headphones, you put both your left and right hand on the left and right phone cups and squeezed, or, pushed them in closer toward your ears, you will hear a different sound reproduction (and often times an improvement). Now, the IEM works even closer in your ear and without a proper seal, the best IE would sound less than optimal. So, do spend the time and effort to find your size that is both comfortable and create the best seal. In this case, I ultimately ended up with the small tips that were most comfortable to me at a slight loss of a better seal and bass performance as a trade-off for longer wearing time. Accessories is a mixed bag here. Detachable cords are always welcomed for longevity although the choice of the memory wire is yet another subjective issue. Some people like them and some not. I personally don't mind them that much but will note that it does take longer to adjust and fit in my ears. However, once properly fitted, they certainly do stay in place better. So, as is with most things in life, it is a trade-off of one over another, in this case, comfort vs. fit vs. convenience. The detachable wires were a little difficult for me to put in but I hope that also means that it won't come off easily. I like the silicone coated wires at the standard length (which is always just a little shorter than we like to be reminded of when tugged). My ZST came with 3 silicone tips which I would say is pretty barebone. I would have been more impressed if a medium size conform tips were also included. Others also included tips like double or triple flange tips. But some are more useful than others. Perhaps at this price point that is to be expected. While reviews by others showed an included carrying pouch, my version did not come with one. Mine arrived sealed so maybe they missed it at the factory. At any rate, I would certainly take this opportunity encourage more manufacturers to include hard/soft shell cases instead of pouches. They just make the IEMs feel that much more "upscale" if you would ever associate the world upscale with Chi-Fi. The packaging itself is just meh. Serviceable, but nothing that wows nor impact the performance of the IEMs. In conclusion, I'm very happy with my KZ ZST Colorful Hybrid BA IEMs. They sound great to my ears, did not cost an arm and a leg that I would be sad if they broke or were stolen, and is a good daily driver that people cant possibly not notice when I am using them.

I was skeptical of these style of head phones because of their average low price range, but they definitely caught my attention and want to give them a try. Every posting tend to have lots of random abbreviations and unfamiliar terms so I just went with a random one. The first thing I noticed when I began unboxing them was the cheap feeling, which was expected for the price. The cord was very short for what I prefer, running a about 3 ft. The cord length is not described in the product description I believe, which should have been a red flag from the start. Now the most important part, the sound. The ear buds created a surprisingly impressive sound. It was actually one of the most crisp sounding earbud style headphones I have heard, which was actually the main description I had heard about these style headphones. It just seemed very natural like all the highs and lows blended so well. I feel like if you could take away the feeling of them physically being in your ears, you wouldnt know you're hearing earbuds. It sounds great, but not to a point of ahhh. I want that natural sound, but with that deep, heavy sound too. The ability to hit those strong lows really well and be able to keep up. I was expecting the earbuds to sit in your ear very nice and comfortable compared to most other earbuds, given the design looking very ergonomic. They are designed to sit right in your ear like a mold and provide extra comfort, but I found it difficult to keep in my ear. I think the low quality had a large effect on that issue, like how the cord came out of the earbuds at an awkward part for it having to run a loop over and down the back of my ear. The positioning of where the cord came out interfered with how it rested in my ear. When I unboxed the earbuds I had to connect the cords to the buds which was one of the more interesting concepts of these style earbuds. The cheap feel of both the cord and buds did not give me confidence in conducting this task. The connectors that plugged into the buds had to small prongs that looked like a single bump would break them clean off. Once I had the cords fully connected I tested to see how difficult the removal of the cord would be and it was fairly easy. I wanted to test this because one of my favorite features of these earbuds, is the fact that you can disconnect the cord and change it out with a different length or a different type of connector. That is super convienent for people that may want to play video games with these but require a long cord. Then they want to use them for listening to music on their phone, but they don't want to have a super long cord connected to their phone, or they might need a different connector.