KZ - ZST

For the price, KZ-ZST offers unbeatable price-to-performance. It’s affordable yet delivers impressive audio quality, making it perfect for gaming, with clear directional sound and solid detail. The build quality feels premium, not plasticky or cheap, and it’s clearly built to last. If you’re after something durable, well-made, and genuinely good-sounding without breaking the bank, this is a no-brainer.

This is my very first IEM, thus I can't compare it with other IEMs but I was using the boAt Bassheads 242 before this, and all the rumors I had heard about IEMs turned out to be true. The difference is honestly mind-blowing. The sound is cleaner, clearer, and way more detailed. My favorite songs became even more enjoyable, and tracks I had completely overplayed 100+ times started sounding fresh and exciting again.

I absolutely love the design. It looks beautiful in person. The build quality is solid, the cable feels premium. Fit is good and comfortable too, even for longer sessions.

The experience with Headphone Zone was amazing as well. I genuinely loved the whole process, the website is clean, they provided clear, helpful information at every step. The communication after ordering was top-notch, and the delivery was super fast. Honestly, I haven’t seen such a smooth and satisfying experience while ordering a product from any other site. The only disappointment is that they stopped sending me pug pics in my email after delivery was completed (jk).

Very good

I bought this IEM as my first, previously I was using seinheiser earphones that lasted 3 years, but these earphones sound so damn good. They are still going strong after 4 years.

I’ve been using the KZ ZST X for over 3 years now, and I’m genuinely impressed with how well they’ve held up. Sound-wise, they have a V-shaped profile punchy bass, clear highs, and slightly recessed mids. Great for genres like EDM, pop, hip-hop, and casual listening. The detail and separation are surprisingly good for the price.

Comfort is excellent, I can wear them for hours without any fatigue. Build quality is solid for something in this price range. The housing is plastic but durable, and the detachable cable makes it easy to replace or upgrade to balanced cable, if needed. Noise isolation is decent too, especially with the right ear tips.

Even after all this time, they still sound clean and lively. For anyone looking for great budget IEMs that are reliable and fun to listen to, the ZST X is an easy recommendation.

I bought my first one in Sept 2021. It broke as i stepped on it by mistake and that also lasted for more than year..
Bought the same one again in May 2023 and still using it. I use it for office calls, watching movies and use it almost 10 hrs daily. Sound quality is one of the best in this price range..
Mic is okay okay but much better than cheap ones..

Bought them for the color back in 2021 :)
For the audio quality I would give it 3 stars paired with a ampdac 4, what made this review a 5 star is-

1. These are made out of plastic but it did not give out on me, handled the iems very roughly during this period without a care in the world and they are still being used in my gym sessions and will be continuously used rigorously.

2. Comfortable for long duration wearing as these are really lightweight.

3. The cables I thought wouldn't last but they are still working, they do have a small nick after 4+ years of usage but I put electrical tape on them (not deplorable at all XD)
They have become a little bit yellowish/darker I must say (Which happens)

all in all, they can last you long if you do happen to notice small things wrong with them and keep maintaining them.

also they get better with time as you listen to them play or maybe you start appreciating the range of the sounds they make (who knows)

Best