True Wireless
Coumi TWS-834A
Not yet scored
Price n/a
Full review dataCoumi TWS-834A vs Technics EAH-AZ100: which should you buy?
Specs, scores and condensed review verdicts for the Coumi TWS-834A vs Technics EAH-AZ100, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.
True Wireless
Technics EAH-AZ100
86Outstanding
$250
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Technics EAH-AZ100 leads on 7 of 7 measures.
- Coumi TWS-834A
- Technics EAH-AZ100
HearWiki score
-
86
Sound
-
9.2
Noise cancelling
-
8.6
Battery
-
8.7
Calls
-
7.8
Value
-
8.1
Price (USD)
-
$250
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?
New platform
Technics EAH-AZ100 (2025) against Coumi TWS-834A (2021). The Technics EAH-AZ100 is the newer platform here: Bluetooth 5.3 against 5.0 and ANC type Hybrid against None. It also adds Transparency mode.
- TWS-834A2021
- EAH-AZ10020254 yr newer
What differsTWS-834AEAH-AZ100
- Bluetooth
- 5.0
- 5.3
- ANC type
- None
- Hybrid
- Transparency mode
- No
- Yes
Platform
Everyday features
Level on: Custom EQ, Companion app.
Specifications
TWS-834AEAH-AZ100
- Type
- True Wireless
- True Wireless
- Price (USD)
- -
- $250
- HearWiki score
- Not scored
- 86
- Released
- 2021
- 2025
- Availability
- Discontinued
- Sold new
- Driver
- 12.5 mm dynamic
- 10 mm dynamic
- Driver type
- dynamic
- dynamic
- Driver size
- 12.5 mm
- 10 mm
- Drivers per side
- -
- 1
- Frequency response
- -
- 20 Hz - 40 kHz
- Impedance
- -
- 16 Ω
- Bluetooth
- 5.0
- 5.3
- Codecs
- -
- SBC, AAC, LC3, LDAC
- Multipoint pairing
- -
- Yes
- Wireless range
- 10 m
- 10 m
- Battery life
- 5 h
- 12 h
- Battery life (ANC on)
- -
- 10 h
- Battery incl. case
- 30 h
- 28 h
- Full charge time
- -
- 120 min
- Quick charge
- -
- 15 min → 1.2 h
- Wireless charging
- -
- Yes
- Active noise cancelling
- No
- Yes
- ANC type
- -
- hybrid
- Transparency mode
- No
- Yes
- Companion app
- Yes
- Yes
- Custom EQ
- Yes
- Yes
- Wear detection
- -
- Yes
- Controls
- touch
- touch
- Voice assistant
- -
- Yes
- Weight
- 9.6 g
- 11.8 g
- Case weight
- -
- 42 g
- Water resistance
- -
- IPX4
- USB-C
- -
- Yes
- Microphones
- 4
- 2
- Microphone type
- -
- MEMS
What reviewers said
Coumi TWS-834A
The Coumi TWS-834A are true wireless earbuds that rely on Bluetooth 5.0 for a stable connection, and they come with a four-microphone setup for clearer calls. They feature a custom EQ through the companion app and deliver about five hours of playback per charge, stretching to 30 hours with the case. Their lightweight 12.5mm dynamic drivers and touch controls make them a straightforward, budget-friendly option without active noise cancellation.
- Pro:Lightweight and comfortable fit
- Pro:Custom EQ available via app
- Pro:Four microphones for call clarity
- Con:No active noise cancellation
- Con:Only 5 hours per charge
- Con:No transparency mode
Technics EAH-AZ100
The Technics EAH-AZ100 are premium true wireless earbuds that deliver rich, detailed sound through a 10mm dynamic driver, with support for high-resolution LDAC streaming. They combine effective hybrid active noise cancellation with a comfortable, IPX4-rated design, plus smart features like multipoint pairing and wireless charging for versatile daily use. With up to 12 hours of playtime on a single charge, they are built to last through long listening sessions.
- Pro:Excellent sound quality with LDAC support
- Pro:Strong hybrid ANC and transparency modes
- Pro:Long battery life with wireless charging case
- Con:Premium price point
- Con:Touch controls may be overly sensitive
- Con:No aptX codec support
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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