KZ Castor Pro IEM with HD Mic, Dual 10mm Dynamic Driver, Harman Target Improved Bass for Hi-Res Audio Quality, 4 Tuning Switch, Oxygen Free Copper Flat Cable, 0.78mm 2Pin & 3.5mm Plug Compatible

The KZ Castor Pro is one of the best budget IEMs currently available. Its dual dynamic driver setup delivers impressive sound quality with deep, punchy bass, clear vocals, and detailed treble. The biggest highlight is the 4-switch tuning system, which allows users to customize the sound signature according to their preferences, making it suitable for various music genres. Build quality feels premium for the price, with a sturdy metal-resin shell and a comfortable ergonomic fit for extended listening sessions. Sound separation and imaging are excellent, making the Castor Pro a solid choice not only for music but also for gaming and multimedia consumption. Reviews consistently praise its value-for-money proposition and highly detailed sound presentation. On the downside, the default tuning may feel slightly bright for some listeners, and achieving the best sound often requires experimenting with the tuning switches. The included cable is functional but not exceptional. Some users have also reported occasional microphone quality issues with the mic version.

I am gaming doing multimedia stuff for over 11 years now and I would consider myself an audiophile. I literally gave them a hard competition against one of the best headphones : Audio technica M50x and hyperx cloud 2 (kingston one). And they survived the competition easily. I did nit expected at all. I use flat frequency headphones a lot specifically Audio technica m50x for music production. Since they are best in its kind I use to game as well(well better than quote on quote gaming headsets). Bought in 2017 still going on like day one. Bought the iems to check how much a 2400 iem can offer(I forgot the exact price I bought) bought more things too. IEM is an old tech. It is also very expensive so to try out, I got these cheap once. But the level of clarity, noise separation and audio queues it provides is completely on point.Saying them cheap would be an insult. I don’t know how KZ made these in such low prices. It is really affordable and worth it hand down. They did it. Reason I went with these because they are the only one offering onboard equaliser with dual 10MM driver. Onboard equaliser is a win win already. Any flat frequency headphones will do the same but headphones do feel bulky overtime. At one point of time I even forgot I had these on .Sound isolation is very good at least if plugged in pc. You can barely hear anything from outside at 40-45 percent and beyond is just stupidly loud but don’t distort the audio I boughthese specifically for the flat frequency (I have hyperx cloud 2 and needed some change , also audio on those headphones feels dummied idk artificially boosted frequencies. I was getting bored. I forgot how much fun it is hearing everything on m50x . These iems do not feel cheap. Comes with custom small levers to change frequencies if you like. I tried these iems solo, with realtek audio drivers.Just PC drivers, That also offers great experience , but it limits power. . I connected DAC of audiocular, sound almost doubled (because dac is just a small device like amps they've built in audio card. They boost the frequency. Buy a 348 bit dac from audiocular. It will blow your mind. I tried them in many scenarios going back and forth on different amps and dacs. Amps/dacs boost the sound to almost double so what you hear on 90 percent without dac, its like 40 percent with amps. I tried with Focusrite amp,I had it. Dont buy fora 2k earphone please it illogical ,It is solo around 11k no flex but It was unimaginable , I just blasted the earphones It was so loud that at 16 percent I was having a blast in warzone with conplete isolation. The clarity and the head room these earphones have is absolute amazing. Audio queue is better than M50x because they are in ear. You can hear everything going on. People say wire is a bit bad, yea it is🤣, microphone is horrid. Very bad as what all other options I have. I’ll definitely buy a but longer cable with good mic. Although pretty comfortable, doesn’t just slips. Well seated. Went with dac at last , dont wanna go deaf. Ps: If using on pc. This might give you reverse audio(left from right and right will sound from left, if enemy comes from left, it would wound coming from right. Easy fix with APO equalizer. Just had to reverse the lines and perfect. I have not tried them yet extensively but this can be a built to last. If durability will be on par. This is a god tier steal at this price . You will probably be able to hear everything in game. Left right, top right , It has that omnidirectional effect. Perfect. If you are using Iems for the first time. You will never ever thing of going back to basic headphones I guarantee.

iska sound quality mast balanced hai, bass punchy hai aur vocals clear aate hain, isliye music sunne me kaafi enjoyable lagta hai 🎶. 4-switch tuning ki wajah se tu apne hisaab se sound adjust bhi kar sakta hai, jo is price me rare hai. Build quality bhi kaafi premium feel deti hai, design stylish hai aur overall ye ek value-for-money + fun sounding IEM hai 🔥

The KZ Castor Pro is a versatile budget in-ear monitor that shines thanks to its unique dual dynamic driver setup and four tuning switches, which let you physically toggle between sound profiles like deep bass, neutral, or high-energy treble. It builds on its predecessor's success with upgraded 10mm drivers that deliver a more cohesive and detailed audio experience, characterized by punchy sub-bass and crisp highs that avoid harshness. The build feels surprisingly premium, combining a zinc alloy faceplate with a clear resin shell that offers a secure, ergonomic fit for long listening sessions. While the stock cable is simple, the overall performance and ability to customize the sound on the fly make it a top-tier choice for audiophiles who want high-end features without the high-end cost.

Very clear vocals and nice bass in good price better then 2k 3k iems and product quality top in this range

Clearity is good when it doesn't hurt your ear.. Headphones user must not go for it

🎧 KZ Castor Pro Review (Compared with Oppo Enco Air 3 Pro) I had been using the Oppo Enco Air 3 Pro since February 2024 and absolutely loved their sound. Unfortunately, I lost them a couple of months ago. Since they’re currently unavailable in India and the Oppo Enco Air 4 Pro are still far from release in India, I started looking for alternatives — that’s when I came across the KZ Castor Pro. Honestly, I doubted that any IEM under ₹2,000 could come close to the Enco Air 3 Pro, which costs more than double. Still, curiosity won, and I ordered them. Out of the box, they didn’t sound very open or spacious — just like any regular earphone at this price when tested on my laptop. So, I decided to pair them with a DAC (Audiocular Spark), used Wavelet with DDUU DDUU tuning switches and a U-shaped EQ, set Dolby Atmos to Movie mode, and enabled Hi-Res Lossless on Apple Music. That’s when the magic happened. The soundstage opened up, the instruments came alive, and suddenly they started outperforming my Oppo Enco Air 3 Pro. The highs are detailed and sparkly yet smooth — never harsh, sibilant, or shouty. They carry just the right amount of brilliance, giving instruments that lively shimmer without fatigue. The mids are pristine, especially the guitar strumming — it sounds crisp and clean. Vocals have an airy, reverberant character that makes them feel spacious and natural. Instrument separation is excellent — you can easily identify sounds coming from different directions and depths. The bass is tight, punchy, and rich, with good sub-bass rumble and satisfying kickdrums. However, despite being labeled the “Improved Bass” version, the Castor Pro isn’t for bassheads. If you prefer that boomy, club-style bass found in TWS from brands like OnePlus or Realme, this might feel a bit restrained. The bass here focuses more on detail than quantity. The soundstage is similar in width to the Enco Air 3 Pro — moderately wide but with slightly more airiness and openness. Imaging is excellent too; you can easily pinpoint footsteps while gaming. The mic quality performs very well indoors, better than most TWS under ₹5,000. It lacks noise reduction, though, so outdoor performance may not be ideal. I’m giving them ⭐ 4 out of 5 stars, mainly because of the cable quality, which feels cheap (though it gets the job done), and the included eartips didn’t fit my ears properly. I’m currently using Sennheiser CX TWS eartips, which improved both fit and sound. Overall, if you’re looking for a replacement for the Oppo Enco Air 3 Pro, the KZ Castor Pro delivers even better sound quality at a lower price, especially when paired with a DAC and proper tuning.

Awesome IEM. It produce excellent sound with supported DAC. I am fully satisfied with the product. In ear comfort is the best. Durability of cable is ok. Cable quality is ok and is compatible with portronics DAC.