Wired IEMs
Cozoy D2
81Outstanding
$55
Full review dataCozoy D2 vs Questyle Zen: 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
Questyle Zen
73Great
$60
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Cozoy D2 leads on 4 of 4 measures.
- Cozoy D2
- Questyle Zen
HearWiki score
81
73
Sound
8.5
7.4
Value
9.0
8.5
Price (USD)
$55
$60
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
Both shipped in 2026. These are 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.
- D22026
- Zen2026
Specifications
D2Zen
- Type
- Wired IEMs
- Wired IEMs
- Price (USD)
- $55
- $60
- HearWiki score
- 81
- 73
- Released
- 2026
- 2026
- Availability
- Sold new
- Sold new
- Driver
- 2DD
- 9.6 mm dynamic
- Driver type
- dynamic
- dynamic
- Driver configuration
- 2DD
- -
- Driver size
- -
- 9.6 mm
- Drivers per side
- 2
- 1
- Frequency response
- -
- 20 Hz - 20 kHz
- Impedance
- 20 Ω
- 22 Ω
- Sensitivity
- -
- 106 dB/mW
- Active noise cancelling
- -
- No
- ANC type
- -
- none
- Controls
- -
- buttons
- Weight
- -
- 5.4 g
- Water resistance
- -
- none
- Detachable cable
- -
- Yes
- USB-C
- -
- No
- Connector
- 2-pin 0.78 mm
- 3.5 mm
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
Questyle Zen
The Questyle Zen is a budget-friendly wired IEM with a single 9.6 mm dynamic driver, delivering a warm, smooth, and bass-forward sound. Its relaxed tuning and comfortable fit make it an easy listen for long sessions, though the pronounced low-end may not suit every genre. With solid build quality and a detachable cable, it offers strong value at its price point.
- Pro:Warm, smooth tuning with good bass weight
- Pro:Energetic yet non-fatiguing treble
- Pro:Solid build quality and detachable cable
- Con:Bass boost may overpower some genres
- Con:Not suitable for listeners seeking neutral sound
- Con:No inline microphone or remote controls
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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