Over-Ear
OneOdio A30
Not yet scored
$55
Full review dataOneOdio A30 vs Sennheiser HD 400: which should you buy?
Specs, scores and condensed review verdicts for the OneOdio A30 vs Sennheiser HD 400, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.
Over-Ear
Sennheiser HD 400
82Great
$77
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
OneOdio A30
No sub-scores yet - not enough rated reviews.
Sennheiser HD 400
Sound8.5
Value8.0
Specifications
| Spec | OneOdio A30 | Sennheiser HD 400 |
|---|---|---|
| Type | Over-Ear | Over-Ear |
| Price (USD) | $55 | $77 |
| HearWiki score | Not scored | 82 / 100 · Great |
| Released | 2023 | - |
| Audio | ||
| Driver | 40 mm | Sennheiser dynamic drivers |
| Driver size | 40 mm | 40 mm |
| Drivers per side | 1 | 1 |
| Frequency response | 20Hz-20kHz | 18Hz-20kHz |
| Impedance | 32 Ω | 120 Ω |
| Sensitivity | 100 dB/mW | - |
| Wireless | ||
| Bluetooth | 5.0 | - |
| Codecs | SBC, AAC | - |
| Multipoint pairing | - | No |
| Wireless range | 10 m | - |
| Battery | ||
| Battery life | 50 h | - |
| Battery life (ANC on) | 15 h | - |
| Full charge time | 150 min | - |
| Wireless charging | No | No |
| Features | ||
| Active noise cancelling | - | No |
| ANC type | hybrid | - |
| Transparency mode | No | - |
| Companion app | No | - |
| Custom EQ | No | - |
| Wear detection | No | - |
| Controls | buttons | buttons |
| Design | ||
| Weight | 268 g | 240 g |
| Water resistance | - | none |
| USB-C | Yes | Yes |
| Calls | ||
| Microphones | 1 | 1 |
| Call noise reduction | CVC 8.0 | - |
What reviewers said
OneOdio A30
The OneOdio A30 are budget-friendly wireless over-ear headphones that come with hybrid active noise cancellation and a 40mm driver. They boast a lengthy 50-hour battery life when noise cancellation is switched off, and feature Bluetooth 5.0 for stable connections. The built-in mic helps with calls, though there's no app support or custom EQ options.
- Pro:Long battery life of up to 50 hours
- Pro:Hybrid ANC helps reduce background noise
- Pro:Lightweight at 268 grams for comfortable wear
- Con:No app support or custom EQ settings
- Con:Only supports SBC and AAC codecs
- Con:Limited to one microphone for calls
Sennheiser HD 400
These over-ear Sennheiser headphones are built around a neutral, open-back design aimed at studio work, delivering a wide soundstage and detailed, transparent audio for critical listening. They are lightweight and comfortable for long sessions, with a high-impedance driver setup that helps maintain low distortion, though they lack isolation and come without a carry case. Wired connectivity via USB-C and detachable cables adds versatility, but the open-back nature means sound leaks both ways.
- Pro:Accurate, transparent sound with wide soundstage
- Pro:Lightweight and comfortable for extended wear
- Pro:Detachable cables and USB-C connectivity
- Con:No included carry case or spare ear pads
- Con:Open-back design leaks sound and offers no isolation
- Con:High impedance may require a dedicated amplifier for best results
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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