Wired IEMs
Cozoy D2
81Outstanding
$55
Full review dataCozoy D2 vs TRN TA3: which should you buy?
On aggregated review scores the Cozoy D2 comes out ahead with a HearWiki score of 81. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: Cozoy D2 - Outstanding overall at around $55.
Wired IEMs
TRN TA3
55Average
$52
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Cozoy D2 leads on 3 of 4 measures.
- Cozoy D2
- TRN TA3
HearWiki score
81
55
Sound
8.5
6.3
Value
9.0
5.4
Price (USD)
$55
$52
Generation & platform
The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?
Same generation
The Cozoy D2 is 5 years newer, but it is the same generation of hardware: nothing in the radio, the codecs or the noise cancelling separates them. Nothing separates them on convenience features either, so the choice comes down to tuning and price. For 5 years between them, that is a thin return - treat this as a restyle rather than a new platform.
- D220265 yr newer
- TA32021
Specifications
D2TA3
- Type
- Wired IEMs
- Wired IEMs
- Price (USD)
- $55
- $52
- HearWiki score
- 81
- 55
- Released
- 2026
- 2021
- Availability
- Sold new
- Discontinued
- Driver
- 2DD
- 3-driver hybrid
- Driver type
- dynamic
- hybrid
- Driver configuration
- 2DD
- -
- Driver size
- -
- 10 mm
- Drivers per side
- 2
- 3
- Frequency response
- -
- 20 Hz - 20 kHz
- Impedance
- 20 Ω
- 10 Ω
- Sensitivity
- -
- 118 dB/mW
- Active noise cancelling
- -
- No
- ANC type
- -
- none
- Transparency mode
- -
- No
- Companion app
- -
- No
- Custom EQ
- -
- No
- Wear detection
- -
- No
- Controls
- -
- none
- Weight
- -
- 8.2 g
- Water resistance
- -
- none
- Detachable cable
- -
- Yes
- Connector
- 2-pin 0.78 mm
- 4.4 mm balanced
What reviewers said
Cozoy D2
The Cozoy D2 is a budget-friendly wired IEM that pairs a 6 mm beryllium driver with a 10 mm graphene-composite driver for a dual-dynamic setup. It offers a flexible connection via a 2-pin 0.78 mm cable that includes swappable 3.5 mm and 4.4 mm plugs, catering to both standard and balanced sources. With a 20-ohm impedance, it's easy to drive from most devices.
- Pro:Dual-driver hybrid design for detailed sound
- Pro:Interchangeable 3.5 mm and 4.4 mm plugs
- Pro:Low impedance (20 ohms) for easy pairing
- Con:No active noise cancellation
- Con:Wired only, limiting portability
- Con:Budget build may not suit all users
TRN TA3
The TRN TA3 is a budget-friendly hybrid in-ear monitor that delivers a lively, engaging sound with a strong focus on bass and midrange performance. It offers excellent value through its solid build, comfortable fit, and generous accessory package, making it a compelling choice for wired audio enthusiasts on a budget. Its 4.4mm balanced connection and lightweight design further enhance its appeal for everyday use.
- Pro:Excellent value for the price
- Pro:Lively and engaging sound signature
- Pro:Comfortable and secure fit
- Con:Requires a source with a 4.4mm balanced output
- Con:No inline controls or microphone
- Con:Lacks active noise cancellation
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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