True Wireless
Soundcore Liberty 4 Pro
84Great
$150
Full review dataSoundcore Liberty 4 Pro vs Technics EAH-AZ40: 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-AZ40
68Good
$129
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-AZ40
Sound7.0
Battery7.0
Calls7.0
Value7.0
Specifications
| Spec | Soundcore Liberty 4 Pro | Technics EAH-AZ40 |
|---|---|---|
| Type | True Wireless | True Wireless |
| Price (USD) | $150 | $129 |
| HearWiki score | 84 / 100 · Great | 68 / 100 · Good |
| Released | 2024 | 2021 |
| Audio | ||
| Driver | dynamic | 6mm |
| Driver size | 10.5 mm | 6 mm |
| Drivers per side | 2 | 2 |
| Frequency response | 14Hz-40kHz | 20Hz-20kHz |
| Impedance | 15.3 Ω | - |
| Wireless | ||
| Bluetooth | 5.3 | 5.2 |
| Bluetooth version | 5.3 | 5.2 |
| Codecs | SBC, AAC, LDAC | SBC, AAC |
| Multipoint pairing | Yes | Yes |
| Wireless range | - | 10 m |
| Battery | ||
| Battery life | 10 h | 7.5 h |
| Battery life (ANC on) | 7.5 h | - |
| Battery incl. case | 40 h | 25 h |
| Full charge time | - | 120 min |
| Quick charge | 5 min = 4 h | 10 min = 90 min |
| Wireless charging | Yes | No |
| Features | ||
| Active noise cancelling | Yes | No |
| ANC type | hybrid | none |
| Transparency mode | Yes | No |
| Companion app | Yes | No |
| Custom EQ | Yes | No |
| Wear detection | Yes | No |
| Controls | touch | touch |
| Voice assistant | supports voice assistant via app | voice assistant support |
| Design | ||
| Weight | 5.5 g | 5 g |
| Case weight | 51 g | 30 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-AZ40
The Technics EAH-AZ40 earbuds deliver accurate audio and solid call quality in a lightweight, comfortable design, with useful extras like Bluetooth 5.2 and multipoint pairing. However, they lack active noise cancellation, wear detection, and advanced codecs, and their bass-heavy tuning can falter on complex rhythmic tracks. Overall, they are capable everyday buds that stop short of being top-tier due to missing premium features.
- Pro:Accurate, detailed sound signature
- Pro:Reliable multipoint connection via Bluetooth 5.2
- Pro:Lightweight and comfortable for extended wear
- Con:No active noise cancellation or wear sensors
- Con:Only SBC/AAC codecs, no aptX or LDAC
- Con:Bass can overpower rhythm in busy tracks
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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