TRUTHEAR x Crinacle Zero: BLUE2 Dual Dynamic Drivers in-Ear Headphone with Detachable Cable (3.5mm+mic Cable)

I bought the TRUTHEAR x Crinacle Zero:BLUE2 IEMs to use in a very loud eSports arena while coaching my team at our State Championship, and they absolutely delivered. At first, I was a bit hesitant because the volume coming straight out of my PC’s motherboard 3.5mm jack was pretty low. The IEMs sounded clean, but not nearly loud enough for a noisy competition environment. The key discovery: these need a decent DAC to really shine. Once I paired them with a proper USB-C DAC, the difference was night and day. Volume, dynamics, and clarity all came alive. So if anyone thinks they’re too quiet, don’t blame the IEMs—add a quality DAC and thank me later. With the right source, these are phenomenal for FPS and competitive play. They isolate extremely well, making background noise in the lab and arena virtually disappear. Comms are crystal clear, positional audio is precise, and most importantly, footsteps are incredibly easy to pick out. The dual dynamic drivers provide clean lows without muddying the mids and highs, which is exactly what you want for tactical awareness. Build quality is solid, the detachable cable is a big plus, and comfort is great for long sessions. For anyone serious about competitive gaming, coaching, or eSports environments where clarity and isolation matter, these IEMs are an outstanding choice.

I've been daily driving these for quite some time, and I've only ever had issues with the foam earbuds getting dirty and needing to be replaced. Both the silicone and the foam earbuds fit perfectly well, but there's a small but noticeable drop in passive noise cancellation when switching to the silicone ones. The cord length isn't impressive by any means, but it gets the job done and can easily be replaced with something longer. The sound quality is great, and they work well for gaming as well as general music listening. They have a good bass depth and the included 10 Ohm adapter boosts it slightly. DO NOT PLUG STRAIGHT INTO MOTHERBOARD AUDIO! Get a USB C to Audio Jack dongle for these, it'll fit the intended Harman target much better, increasing audio quality. I've been taking these on the go from my home to university, and they are quite durable. It only few scratches on the IEM backing after quite a while of rigorous use. Overall, great IEMs!

Great IEMs for a reasonable price The casing seems to be plastic but feel strong enough to not break easily. The sound is a little thin unless you use the included +5 ohm adapter, but still sounds respectable without. The ear loops are a bit big if you have smaller ears, but are still pretty comfortable even wearing my glasses. They also come with 3 sets of foam eartips and 3 sets of silicone eartips all in different sizes to make sure they will fit in any ear. They work on any device that has a 3.5mm aux port only as there is no included adapter to 1/4 inch. As the name implies the only color is Blue and the device is not waterproof, it is however water and sweat resistant as long as in ears.

The Zero:BLUE2 is a solid follow-up that mostly delivers on its promise of high-fidelity sound in a budget-friendly package. Tuning is clearly Crinacle-inspired—neutral with a slight emphasis on clarity, and it works really well across genres. Pros: Balanced tuning with excellent clarity and separation, especially in the mids and treble. The dual dynamic drivers provide nice layering and avoid muddiness, even in complex tracks. Detachable cable is a huge plus at this price point—easy to upgrade or replace. Build quality is great for the price, and the design looks sleek without being over-the-top. Cons: Bass is tight and controlled, but lacks a bit of sub-bass extension—bassheads might find it a bit too polite. Fit might be hit-or-miss depending on your ears. I had to experiment with tips to get a proper seal. Cable is decent but nothing special—definitely swappable if you're picky. Another slight nitpick is that at night the blue design looks black. Overall, this is a great set for anyone who values tonal balance and detail. It punches well above its price class, especially for critical listening. A few minor gripes hold it back from a perfect score, but it's a no-brainer recommendation in its range.

I’m incredibly picky when it comes to sound - these IEMs sound amazing with a good quality 3.5mm to USBC DAC ($15 add on) on my iPhone. I’m hearing details in songs that are completely lost on Bluetooth headsets due to compression. They’re super comfortable, high quality and beat any Bluetooth headset. I wore them on my flight today and they actually cancel out the noise even though they’re not ANC. I have a high end ANC I always wear on flights but did not feel the need to use them. I’m using an XLR converter/amp to connect them to my bass amp / pre amp and they sound amazing! Non regret purchase.

Considering the price bracket, these offer sound quality and listening experience way above what I was expecting.

Um excelente fone. Bem confortável para sessões longas

sounds good (u really should watch audiophile yt videos instead of comments here since we arent good at reviewing products)

Let's start by saying that I’m not really a huge audiophile, so take my opinion with a grain of salt. That said, I do tend to lean toward products that Crinacle has had a hand in tuning. To my ears, these sound really good. I’m not treble-sensitive, in fact, I actually prefer a bit of extra treble in the tuning. I’m using the FiiO K2 as my DAC/AMP on a Windows 11 PC (system volume set between 30–40%), and I adjust the volume within applications like YouTube Music, Spotify, and my browser. I’m using the included silicone ear tips and haven’t tried the foam ones yet. But since treble isn’t an issue for me, the silicone tips will likely be my daily drivers. I did try these on my android phone and on an Iphone, I'd say result is pretty much the same as using it for PC. There’s not much to complain about, although a few songs do sound slightly distorted at certain volume levels. Well, “distorted” might not be the right word, it’s more like there’s a peak in certain frequencies that lasts a few seconds in few songs (like metro booming music is a good example, or some lesser known artist or self published artist). I noticed this on YouTube Music, but when I tried the same songs on Spotify, there was no distortion, at least not when the volume was set to 80–90%. Some distortion did appear at 100%, but at that level, it’s kind of expected. It could be due to the song's mastering or the version uploaded to YouTube/Youtube Music. It doesn’t happen with all songs. Using the included bass adapter does help reduce the distortion, but not always. I believe it's the 2DD that's causing it, but I am a bit unsure about that, you do get used to it after a while, you kind of find it part of the listening experience, but it could just be me coping. Either way, it’s something worth noting if you’re considering these for music listening only. The additional bass adapter lowers the treble and boosts the bass (shocking, I know). Personally, I prefer the sound without the adapter when listening at lower volumes. But for daily use, I’ve mostly kept the adapter on. I do spice it up sometimes and listen to it without the adapter if I feel like having extra volume and umf to the music. These are also good for casual content consumption like YouTube, TV shows, movies and etc. I use them for gaming as well, wouldn't recommend them for competitive shooter games, you barely hear footsteps if that's important for you . They’re good enough for my gaming sessions (I play all sort of games, but I do switch over to my gaming headset if I am in a call or a group). I do, however, need to bump the system volume up to 50–60% for games. Edit: The only thing I really dislike is the cable, more specifically, the ear hooks. They don’t fit my ears very well. I’ve never really had this issue before with other IEMs, but with these, the fit is a bit loose and they occasionally fall out my ears. That’s mostly during the first 10-15 minutesm, after that, they settle in. But if I take them off and put them back on, I have to repeat the whole adjustment process dance all over again. Maybe I just need to give them more time to break in over a few days or weeks. Do I recommend these? I’m not sure. At full price, it's a tough sell. I bought them on sale and had a gift card lying around, so I figured, why not buy these at a heavy discount for me? But would I pay full price without any discounts or gift cards? Now that's a hard sell to say yes, I'd probably lean towards no if you have already good IEMs. Should these be your first? No. Should these be your secondary or third option IEMs? Maybe. At least then you can mix it up a bit. But my suggestion is if you can try these out somewhere, do so. Try and listen to your favorite songs with and without the adapter. If you can't try these out, try and look elsewhere instead if you find the full price hard to swallow.

Joya de audífonos si te gustan los graves o el bass. Importante tener en cuenta que por su impedancia pueden no tener tanto volumen en algunos dispositivos, sin embargo si los conectas a un buen DAC suenan de maravilla.