Letshuoer S12 PRO in Ear Headphones 14.8mm Planar Magnetic Driver Wired HiFi Earphones for Smartphones/PC/Tablet (Deep Space Blue, 2.5mm / 3.5mm / 4.4mm Connector)

This review is for Letshuoer S12 in-Ear Headphones 14.8mm Planar Magnetic Driver Wired in-Ear HiFi Earphones for Smartphones/PC/Tablet (3.5mm Connector, Gun Metal Grey).This is my 5th set if IEM after the following:- 1More trip-driver.- Celest Rue.- CCZ DC-02.- Tanchjim Bunny.I also own Sennheiser HD6xx (open back) and HD598cs (closed back), as well as regular headsets including Apple AirPods 2, Apple AirPods Pro 2, Bose SoundSport wireless, Surface Noise-Cancelling headphones, Jabra Evolve2 65, and a few others. Now I believe this is the end-game from IEM perspective, just like HD 6xx for over-the-ear models.I am not an audiophile, and I am not interested in collecting earbuds/headphones, I just love music and would like to find the right tool for enjoying my music collection. When I am away from my desk, I need a pair of small earbuds which are easy to carry without sacrificing music quality. Believe or not, even though Apple AirPods 2 are very good (great noise cancellation, superb convenience using with iPhone), but the sound quality doesn't cut it. Each cheap sets I got in the past are progressively better, among those the best one is the Bunny. The almost perfect Harmon tuning makes most of the music truely enjoyable. It's very good in most of times, only in some serious classical music occasionally I would notice its shortcoming, particularly the low bass and clarity at the treble range. This led me to find a better one so I can forget the existence of the device itself, so the music can be truely immersive.Letshuoer S12 is exactly what I am looking from every perspective.In the box, besides IEM and cable it also carries a nice-looking hard-carry-box. It's high quality and served as a good protection to the device when it's not in use. 1 set of foam tips and 2 sets of silicone ear tips are provided, each set has 3 different sizes. I couldn't tell the difference between 2 sets of silicone ones beside color, foam tips is for better sound isolation to achieve a better bass, I picked black silicone for its color and ease of cleaning. My ear canal is small, so I picked the small ones. The quality of the cable is excellent, the plugs at 3 ends are all made of metal, the twisted wire looks super sturdy, the earbuds are made of metal too. Everything looks super high quality.The sound quality is excellent. I feel across low bass to mid to treble the entire frequency range is well balanced, no extra emphasis in the bass, no tune down in the treble, it just delivers the original sound that I am supposed to, and I want to, hear. The clarity is unparalleled, and best of all it responds to large dynamic range really well. In "Also Sprach Zarathustra" by Herbert von Karajan the low humming part in the first minute, and first several minutes in William Tell Overtures by Carlo Maria Guilini, where my previous low-price IEMs struggle, S12 handles them so well and so naturally. Among several symphonies, operas, and pop song I tried so far, I haven't had the feeling of "wow, this is impressive and so different", but I do notice some small details that I didn't hear in the past, and overall feeling is it's immersive, natural, and the music is full of me and I don't feel the IEM itself. It gets itself out of the way.In term of comfortableness, I can wear it for hours without feeling fatigue. The buds aren't heavy, the silicones eartips are smooth, the design of the vent makes it possible to not build up any pressure in the ear canal.In term of sound isolation, it's very good. Obviously, there is no way to compare with AirPods Pro 2, but I cannot hear what my kids are arguing about near me, my wife has to tap me because I wouldn't notice otherwise.Given the superb construction quality, excellent design, and best-in-class sound quality, I think this is a no-brain buy for IEMs around $100. It's so much better than any wireless earbuds at any price range in my opinion, assuming you don't mind the wire. it's simple to use and will last for years considering there no battery or anything to go bad. I strongly recommend this IEM to all music lovers!

I got these after experimenting with other chi-fi IEMs up to the very expensive Kiwi Ears Orchestra Lights and being pretty disappointed despite listening to lossless files through a decent DAC. Instead, my favorite so far were the $50 KZ ZS10 Pros. I guess I just don't have very refined ears. These are the first planar drivers I've owned.I went looking for an upgrade to my ZS10s and was pointed to the S12 Pros. I was not disappointed. I paired them with some Spinfit W1 sleeves and they're by far the most comfortable IEMs I've ever tried. No hotspots or strain. I wear them for hours with no discomfort whatsoever. The build quality is also excellent. Understated design but very solid feeling construction.The sub-bass is front and center, though it can get a little muddled when playing compressed files. The mids are well-balanced. The treble stands out spectacularly, though can get a little hissy with prominent sibilants. These IEMs need to be pushed to really bring out the soundstage, which may be unsuitable for listeners who prefer lower volumes. For me, the best sound is on the upper range of my comfort.For my taste, they create a wonderfully bombastic sound. Though be assured that these IEMs do not create a "refined" sound. They make no illusions about how sculpted the response is. However, if that's what you're after, look no further.

I don't have a lot of experience with IEMs, my comparisons are based against the Fiio Fh7 (around 450 usd) and the Tin Hifi T2 (50 USD). I can confidently say that the S12 pro fights with equal terms against the FH7 which is 3x the price. Very engaging, refined highs, deep tight bass and mids that don't fade away. I'm loving it.The cable is brilliant, I constantly swap the terminations for 3.5mm using with my Nintendo switch, 4.4mm balanced with my Fiio M11 plus and 2.5mm balanced with my Fiio Btr3k. It does require a bit more juice from the M11 and I prefer to use it in high gain, the FH7 plays comfortably with mid gain.Comfort is outstanding, no ear fatigue whatsoever.I normally use spinfit tips but I've adapted quite well to the similar tip that comes in the box.Price to performance is great. Again, it trade blows with the FH7 which is 3x the price.Just go ahead and buy one, you won't regret!

This was my first planar IEM, and I'm quite impressed with its performance. The tuning, while bright and unmistakably "planar sounding", still has decent bass. Fine detail resolution and imaging is excellent, to the point where this is my go-to IEM for analytical listening (even if it does get fatiguing after a while).Build quality is good, but I have two issues with the design: most importantly, all of the stock tips lack sufficient grip to remain in the same position, and I find myself frequently adjusting them in longer listening sessions. Second, and much less importantly, the aluminum chassis gets noticeably cold. If you live in a colder climate, you will spend the first few minutes of each listening session acutely aware of that fact as they sap the warmth from your ears.Aside from those two admittedly minor issues, this is a wonderful IEM. I would recommend it for anyone who is interested in dipping their toes into planar IEMs, even over a competitor like the 7Hz Timeless. Just be aware that, if you have "non-standard" ears, you may need to get a different set of tips to achieve the best fit.