Third Generation 14.8mm Planar Driver In Ear Monitor

  • 14.8mm Dual Chamber Planar Driver
  • R-Sonic Technology
  • Meticulous Crossover Design
  • Ergonomic Design, Premium Materials
  • High-Quality Cables for Superior Transmission
Regular price $329.00 USD
Sale price $329.00 USD Regular price

14.8mm Dual Chamber Planar Driver

The S15 boasts a revolutionary 14.8mm Dual Chamber Planar Driver, offering an expansive soundstage, exceptional transient response, and precise sound reproduction. With the ability to effortlessly handle diverse music genres, it presents music details with unparalleled clarity and depth.

R-Sonic Technology

Taking acoustic performance to new heights, LETSHUOER introduces a breakthrough – the 6mm Passive Filtering Module (PFM). Enhanced with R-Sonic Dynamic Harmonic Technology, this module filters sound energy, suppressing excessive low frequencies, balancing air pressure, and providing effective passive resonance. The result is an enriched low-frequency experience with heightened finesse.

Meticulous Crossover Design

The S15 adopts a dual acoustic tubes structure with filter crossover, ensuring smooth transitions across frequencies. This meticulous design reduces distortion, delivering a high level of clarity, smoothness, and rich sound layering. The outcome is an impeccable sonic balance that resonates with audiophiles.

Ergonomic Design, Premium Materials

Collaborating with HeyGear, LETSHUOER refines the S15 shell for ergonomic perfection. The internal structure is optimized for precise acoustic configuration and extremely low distortion. The aluminum-magnesium alloy faceplate, crafted through CNC carving, sandblasting, and anodization processes, exudes sophistication and aligns with LETSHUOER's pursuit of earphone aesthetics.

High-Quality Cables for Superior Transmission

The S15 ensures stable sound transmission with a 216-strands silver-plated monocrystalline copper cable. Featuring a flush-mounted 0.78mm dual-pin receptacle and detachable 2.5mm, 3.5mm, 4.4mm 90-degree angle connectors, the S15 is compatible with various devices. Immerse yourself in a world of unparalleled sound quality with the LETSHUOER S15 Third Generation.

Inside the Box

  • 1 x LETSHUOER S15
  • User Manual

1 Year Warranty

The LETSHUOER S15 Comes with a 1 year warranty on the In-Ear Monitors and 3 month warranty on the cable.

Technical Details

S15 Wired In-Ear Monitor
Chassis Material
3D printed resin
Material of Faceplate
Anodized aluminum
Frequency Response
Audio connectors
2.5mm/3.5mm/4.4mm interchangeable connectors
1.2m 216-strands silver-plated monocrystalline copper
14.8mm planar driver + 6mm passive filtering module

Processing Time

This product is in Pre-order period. Pre-orders are provided for items that have not reached us and will take some time to be shipped out.

Pre-order Period: 1 week.


  • No cancellation of orders once ordered.
  • All orders to be shipped out sequentially.

Authentic Products

Linsoul Audio is the authorized distributor. All products are authentic and genuine.

Worldwide Free Shipping

We are located in China but send our products worldwide for free. T&Cs apply.

1 Year Warranty

We provide 1 year warranty for the all products except the cables and accessories*.

Online Support

Need help?, we are here to assist you
Monday - Friday: 09:00 – 18:00 (UTC+8)

Customer Reviews

Based on 2 reviews
Letshuoer S15: The planar the world needs

This is the first time I have spent this much time with a planar iem. As far as my understanding of planars goes, they are a hit or miss in terms of timbre. However, with the S15, both timbre and tonality reach great levels. It is one of the good releases from the year 2023. Throughout my time with these iems I never had any complaints, and I enjoyed them as much as I enjoyed my other sets.

But the real question is: Is the price tag justified? I think that's a big question to answer. It's evident that Letshuoer has dedicated significant effort to deliver a comprehensive package with these in-ear monitors. The appealing aesthetics, solid build, generous accessories, and quality cable all underscore the team's commitment to providing a satisfying user experience. While all these elements are justifiable, comparing the S15's price point with other planars and some good non-planar iems reveals a potential disparity. Something like the Hidizs MP145 at 130 USD is a lot more justified when we talk about the price-to-performance ratio. In terms of sound quality, the S15 excels, but the pricing might be perceived as less justified when considering alternatives.

That being said, these iems are one of my favourites from the last year, and I am sure most of the people who have tried them would surely recommend them. They are a lot more than just impressive. Not only are they aesthetically pleasing, but their sound is also beautiful. Who knows, Letshuoer might introduce attractive discounts, making this great experience more accessible to a broader audience.

Absolute best planar headphones!

👋 The audio company LetShuoer has released the absolute best planar headphones of this year, let's find out today why and how they sound, you will find out in the review!
🥳Enjoy watching!
🔥Available in all languages

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