Wired IEMs
1MORE Piston Fit
68Good
$10
Full review data1MORE Piston Fit vs TRN CS3: which should you buy?
On aggregated review scores the 1MORE Piston Fit comes out ahead with an HearWiki score of 68. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: 1MORE Piston Fit - Good overall at around $10.
Wired IEMs
TRN CS3
62Average
$5
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
1MORE Piston Fit
Sound6.5
Battery6.0
Value8.0
TRN CS3
Sound6.0
Value7.0
Specifications
| Spec | 1MORE Piston Fit | TRN CS3 |
|---|---|---|
| Type | Wired IEMs | Wired IEMs |
| Price (USD) | $10 | $5 |
| HearWiki score | 68 / 100 · Good | 62 / 100 · Average |
| Released | 2020 | 2021 |
| Audio | ||
| Driver | dynamic | 6mm composite diaphragm dynamic driver |
| Driver size | 10 mm | 6 mm |
| Drivers per side | 2 | 1 |
| Frequency response | 20Hz-20kHz | 20Hz-20000Hz |
| Impedance | 32 Ω | 18 Ω |
| Sensitivity | - | 118 dB/mW |
| Wireless | ||
| Bluetooth | 5.0 | - |
| Codecs | SBC | - |
| Multipoint pairing | No | - |
| Battery | ||
| Battery life | 8 h | - |
| Features | ||
| Active noise cancelling | No | - |
| Controls | buttons | - |
| Design | ||
| Weight | 14 g | 11 g |
| Water resistance | IPX4 | - |
| Detachable cable | No | No |
| USB-C | No | No |
| Calls | ||
| Microphones | 1 | - |
What reviewers said
1MORE Piston Fit
The 1MORE Piston Fit is an ultra-budget wireless earphone that delivers a lively, bass-forward sound for its price, though it falls short of neutral or refined tuning. With Bluetooth 5.0, an IPX4 rating, and a lightweight 14g build, it covers practical basics for casual listening, but its 8-hour battery and SBC-only support keep it firmly in entry-level territory. Overall, it's a decent value pick for those prioritizing affordability and a fun sound signature over accuracy or premium features.
- Pro:Very affordable price point
- Pro:Punchy, energetic bass response
- Pro:Lightweight and comfortable in-ear fit
- Con:Muddy midrange and sharp treble
- Con:Battery life is only average at 8 hours
- Con:No support for advanced codecs like AAC or aptX
TRN CS3
The TRN CS3 is an ultra-affordable, lightweight in-ear monitor with a single 6mm dynamic driver, designed for comfort and a bass-forward sound. It offers a surprisingly wide and spacious presentation for its tiny size and price, though its resolution and layering are only moderate. It's a decent pick for budget-conscious listeners who prioritize fun, energetic tuning over technical precision.
- Pro:Extremely affordable and lightweight
- Pro:Surprisingly wide soundstage
- Pro:Strong, bass-forward tuning
- Con:Moderate clarity and detail
- Con:Layering and separation are limited
- Con:Non-detachable cable
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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