True Wireless
Soundcore Liberty 4 Pro
84Great
$150
Full review dataSoundcore Liberty 4 Pro vs Technics EAH-AZ40M2: which should you buy?
On aggregated review scores the Soundcore Liberty 4 Pro comes out ahead with an HearWiki score of 84. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: Soundcore Liberty 4 Pro - Great overall at around $150.
True Wireless
Technics EAH-AZ40M2
68Good
$170
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Soundcore Liberty 4 Pro
Sound8.5
Noise cancelling8.0
Battery7.5
Calls8.0
Value8.5
Technics EAH-AZ40M2
Sound7.0
Noise cancelling6.0
Battery7.0
Calls6.0
Value7.0
Specifications
| Spec | Soundcore Liberty 4 Pro | Technics EAH-AZ40M2 |
|---|---|---|
| Type | True Wireless | True Wireless |
| Price (USD) | $150 | $170 |
| HearWiki score | 84 / 100 · Great | 68 / 100 · Good |
| Released | 2024 | 2023 |
| Audio | ||
| Driver | dynamic | 6 mm |
| Driver size | 10.5 mm | 6 mm |
| Drivers per side | 2 | 1 |
| Frequency response | 14Hz-40kHz | 20Hz-40kHz |
| Impedance | 15.3 Ω | 16 Ω |
| Wireless | ||
| Bluetooth | 5.3 | 5.3 |
| Bluetooth version | 5.3 | 5.3 |
| Codecs | SBC, AAC, LDAC | SBC, AAC, LDAC |
| Multipoint pairing | Yes | Yes |
| Battery | ||
| Battery life | 10 h | 7 h |
| Battery life (ANC on) | 7.5 h | 5.5 h |
| Battery incl. case | 40 h | 18 h |
| Full charge time | - | 120 min |
| Quick charge | 5 min = 4 h | 15 min = 60 min playback |
| Wireless charging | Yes | No |
| Features | ||
| Active noise cancelling | Yes | Yes |
| ANC type | hybrid | - |
| Transparency mode | Yes | - |
| Companion app | Yes | - |
| Custom EQ | Yes | - |
| Wear detection | Yes | - |
| Controls | touch | - |
| Voice assistant | supports voice assistant via app | - |
| Design | ||
| Weight | 5.5 g | 5 g |
| Case weight | 51 g | 35 g |
| Water resistance | IPX5 | IPX4 |
| USB-C | Yes | Yes |
| Calls | ||
| Microphones | 6 | 1 |
| Call noise reduction | AI noise reduction | - |
What reviewers said
Soundcore Liberty 4 Pro
The Soundcore Liberty 4 Pro pack a hefty feature set into a budget-friendly wireless earbud package, including adaptive noise cancellation, LDAC support, multipoint connectivity, and wireless charging. They deliver solid sound with crisp treble and effective call quality, though the charging case can feel gimmicky and prone to fingerprints, and spatial audio falls short. Overall, they're a well-rounded value pick rather than a flagship-level performer.
- Pro:Strong active noise cancellation
- Pro:Wide codec support including LDAC
- Pro:Multipoint and wireless charging included
- Con:Charging case feels gimmicky and smudges easily
- Con:Spatial audio performance is weak
- Con:Battery life is average for the price
Technics EAH-AZ40M2
The Technics EAH-AZ40M2 are a well-rounded pair of true wireless earbuds that offer a spacious soundstage, a solid feature set, and a sleek design for their price. They perform competently in most areas, though they lack the aggressive punch and drive of some rivals, and their noise cancelling and overall sound don't quite reach the top tier of their class. They're a stylish, comfortable option for midrange buyers, but they face stiff competition from more dynamic models.
- Pro:Spacious and open soundstage
- Pro:Attractive, compact design with comfortable fit
- Pro:Strong feature set including LDAC, multipoint, and quick charge
- Con:Lacks punch and drive in the bass
- Con:Noise cancelling is competent but not class-leading
- Con:Sound quality doesn't stand out against top competitors
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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