Wired IEMs
KZ ZSN Pro
72Good
$14
Full review dataKZ ZSN Pro vs TRN CS2: which should you buy?
On aggregated review scores the KZ ZSN Pro comes out ahead with an HearWiki score of 72. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: KZ ZSN Pro - Good overall at around $14.
Wired IEMs
TRN CS2
68Good
$9
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
KZ ZSN Pro
Sound7.5
Calls6.5
Value8.0
TRN CS2
Sound6.5
Value8.0
Specifications
| Spec | KZ ZSN Pro | TRN CS2 |
|---|---|---|
| Type | Wired IEMs | Wired IEMs |
| Price (USD) | $14 | $9 |
| HearWiki score | 72 / 100 · Good | 68 / 100 · Good |
| Released | 2020 | 2020 |
| Audio | ||
| Driver | Hybrid: 10mm dynamic + 30095 balanced armature | dynamic |
| Driver size | 10 mm | 10 mm |
| Drivers per side | 2 | 1 |
| Frequency response | 7Hz-40000Hz | 20Hz-20kHz |
| Impedance | 24 Ω | 22 Ω |
| Sensitivity | 112 dB/mW | 118 dB/mW |
| Wireless | ||
| Bluetooth | No | none |
| Multipoint pairing | No | No |
| Features | ||
| Active noise cancelling | No | No |
| Controls | buttons | buttons |
| Design | ||
| Weight | 29 g | 21 g |
| Calls | ||
| Microphones | 1 | - |
What reviewers said
KZ ZSN Pro
The KZ ZSN Pro is an ultra-affordable hybrid in-ear monitor that pairs a 10mm dynamic driver with a balanced armature for a lively, energetic sound. It offers punchy bass, clear mids, and crisp highs, making it easy to drive from phones or tablets. With a detachable cable, comfortable fit, and optional mic version, it's a solid budget pick, though accessories and cable quality are basic.
- Pro:Energetic, fun tuning with strong bass and crisp treble
- Pro:Easy to drive from any device
- Pro:Detachable cable and optional microphone versions
- Con:Stock cable feels flimsy
- Con:Minimal accessories in the box
- Con:Bright tuning may not suit all listeners
TRN CS2
The TRN CS2 is a very affordable single-dynamic-driver wired earphone that punches above its price with a balanced, lively sound signature and a sturdy build. Its lightweight, colorful shell and straightforward controls make it a practical, entry-level pick for budget-conscious listeners who want a no-fuss daily driver.
- Pro:Excellent value for the price
- Pro:Balanced and easy-going sound
- Pro:Lightweight and durable construction
- Con:Limited accessory package
- Con:No detachable cable
- Con:Treble can be slightly rolled off for some listeners
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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