Wired IEMs
Etymotic ER2SE Earphones
82Great
$160
Full review dataEtymotic ER2SE Earphones vs Hidizs Mermaid MS2: which should you buy?
On aggregated review scores the Etymotic ER2SE Earphones comes out ahead with an HearWiki score of 82. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: Etymotic ER2SE Earphones - Great overall at around $160.
Wired IEMs
Hidizs Mermaid MS2
74Good
$89
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Etymotic ER2SE Earphones
Sound8.5
Value8.0
Hidizs Mermaid MS2
Sound7.5
Value8.0
Specifications
| Spec | Etymotic ER2SE Earphones | Hidizs Mermaid MS2 |
|---|---|---|
| Type | Wired IEMs | Wired IEMs |
| Price (USD) | $160 | $89 |
| HearWiki score | 82 / 100 · Great | 74 / 100 · Good |
| Released | 2019 | 2021 |
| Audio | ||
| Driver | single dynamic driver | Knowles33518 + 10.2mm Large Dynamic Driver |
| Driver size | - | 10.2 mm |
| Drivers per side | 1 | 2 |
| Frequency response | flat | 20Hz-40kHz |
| Impedance | 15 Ω | 18 Ω |
| Sensitivity | 96 dB/mW | 112 dB/mW |
| Wireless | ||
| Multipoint pairing | No | - |
| Battery | ||
| Wireless charging | No | - |
| Features | ||
| Active noise cancelling | No | - |
| ANC type | none | - |
| Transparency mode | No | - |
| Companion app | No | - |
| Custom EQ | No | - |
| Wear detection | No | - |
| Controls | none | - |
| Design | ||
| Weight | 15 g | 10 g |
| Detachable cable | - | Yes |
| USB-C | No | No |
What reviewers said
Etymotic ER2SE Earphones
The Etymotic ER2SE is a wired, single-dynamic-driver IEM that delivers a flat, reference-style sound aimed at critical listening and studio monitoring. It offers strong passive isolation and easy drivability, though its deep-fit design and modest bass output may not suit everyone. Its transparent, detail-rich tuning makes it a strong value for neutral-sound enthusiasts.
- Pro:Accurate, neutral tonal balance
- Pro:Excellent passive noise isolation
- Pro:Clear and detailed treble
- Con:Deep insertion may be uncomfortable for some
- Con:Bass response is subdued
- Con:Shells protrude noticeably
Hidizs Mermaid MS2
The Hidizs Mermaid MS2 is a budget-friendly hybrid IEM that pairs a balanced armature with a 10.2mm dynamic driver for a coherent, detailed sound. Its W-shaped tuning brings energy to pop and electronic tracks, though the treble can be assertive for sensitive ears. With a lightweight resin shell and detachable cable, it offers solid value for those seeking an engaging, reference-leaning listen under $100.
- Pro:Engaging, detailed hybrid sound
- Pro:Lightweight resin shell with detachable cable
- Pro:Good value for the price
- Con:Treble may be too bright for some
- Con:Tuning not universally flattering
- Con:No noise cancellation or wireless option
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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