Hidizs Mermaid MS2

General Information

Specifications:

ModelMS2
Product NameHidizs Hybrid Dual Drivers HiFi Earphones
Earphone TypeCustomized HiFi In-Ear Monitors
BA DriverKnowles RAD-33518-P183
Dynamic Driver10.2mm, Dual Voice Coils & Dual Voice Chambers(Hidizs Newly Developed Macromolecule Composite Diaphragm V2.0 Version)
AppearanceGerman Eco-friendly Resin Body, Gold-plated Sound Nozzle
Frequency Response20Hz-40kHz
Sensitivity112dB
Impedance18Ω
CableMixed Braiding of Quad-Core Wires(High Purity Silver Wires×2 & OFC Wires×2), 1.2m in Length
Earphone ConnectorDetachable 0.78mm 2pin Gold-plated Socket
Plug3.5mm Gold-plated Plug
Weight(a pair) Approx.10g (excl.earphone cable)

Latest reviews

antonyfirst

Headphoneus Supremus
Pros: - Great fit
- Full, balanced sound signature
- Very detailed
- Detacheable cable with low microphonics
- Overall build quality and aesthetics
Cons: - Limited deep bass extension
This is my review of Hidizs Mermaid MS2. Listening to them has been a great surprise, as they are a very good sounding IEM for an extremely affordable price.
Note: Hidizs has kindly sent me a pair of Mermaid MS2 for this review. While appreciate their kindness, this will not influence my opinion in any way.

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Structure and Fit

The Mermaid MS2 are a hybrid IEM, which use two drivers per channel. The low frequencies are taken care of by a 10.2mm large dynamic driver, which manages to produce full bodied bass frequencies, while the middle and high frequencies are managed by a balanced armature driver, which, thanks to its fast impulse response, can render tiny details and separation layers precisely. This hybrid nature exploits the best of the two technologies to cover the full spectrum, and confers the IEM a quite high sensitivity (112 dB), thanks to the inherently high efficiency of balanced armature drivers.

While not small, the MS2 is very ergonomic and sits perfectly in my ears. I am positively surprised by this because, frequently, several other multi-driver hybrid IEMs I tried feel quite big in the ears (as an example, Dunu DN-2002 and 3001), because of a large housing, but this is not the case.

The MS2 comes with a quite wide selection of single flanged silicon eartips. Personally, because of the shape of my ears, I prefer to use comply foam tips or dual flanged tips that I have bought separately. Regardless, what is important here is to reach a correct seal (for sound) and have a comfortable fit (for the user).

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Aesthetically, the MS2 can come in a dark color palette or, like in my case, a marine-light blue color palette, which I find gorgeous. The Mermaid MS2 is designed to be worn upside down, passing the cable over and behind the ear.
The removable cable has an almost pink color, it’s a high quality braid of 2 braided silver wires and 2 braid OFC wires, and it’s extremely flexible, which adds to the overall comfort and absence of microphonics. The cable connectors to the earpieces are 2-pins per channel and, just like the 3.5 mm jack, looks very sturdy.


Sound Quality

The MS2 is energic, full bodied, natural sounding and detailed.
On the bass side, while it lacks the ultimate depth, it has the right amount of midbass to be both powerful and create the “foundation” for the remaining parts of the spectrum, and to not feel rubbery nor cavernous (no excessive resonance). While “deep bass” is desirable (also because of the difficulty to achieve it), the midbass (and more in general, what is in the middle) is more important because it has many more chances to ruin the sound if rendered incorrectly.
The midrange is natural, slightly warmish, an area around 2 kHz might be very slightly recessed (probably, just in comparison to the midbass and lower midrange) but it never sounds distant.
The high frequencies are very slightly accentuated, improving clarity, layering and spatial capabilities, without showing any hints of sibilance.
The overall picture is that of a vivid, present, balanced sound.

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Bottom Line

Hidizs Mermaid MS2 is a wonderful earphone. It has very good tonal balance, it is neutral, smooth and pleasant to listen to. It’s a great all arounder with all music genres.
As already stated, it’s very ergonomic. On the website, it’s stated that the dark colored version and the blue-marine colored version have some differences in fit, so, having tried the latter, I would definitely go with that.
The Mermaid MS2 is built like a tank, comfortable, beautiful and uses great materials. The removable cable is fantastic in quality and flexibility.
Furthermore, it comes with a high quality carrying case (which, to me, looks true leather).
All these features at under 100$ were unthinkable until few years ago, which make it a bargain and a safe purchase even at higher budgets.

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