Over-Ear
Nothing CMF Headphone Pro
84Great
$140
Full review dataNothing CMF Headphone Pro vs Sennheiser HD 350BT: which should you buy?
On aggregated review scores the Nothing CMF Headphone 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: Nothing CMF Headphone Pro - Great overall at around $140.
Over-Ear
Sennheiser HD 350BT
72Good
$120
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Nothing CMF Headphone Pro
Sound8.0
Noise cancelling8.5
Battery9.5
Calls7.5
Value9.0
Sennheiser HD 350BT
Sound7.0
Battery8.0
Calls6.0
Value7.5
Specifications
| Spec | Nothing CMF Headphone Pro | Sennheiser HD 350BT |
|---|---|---|
| Type | Over-Ear | Over-Ear |
| Price (USD) | $140 | $120 |
| HearWiki score | 84 / 100 · Great | 72 / 100 · Good |
| Released | 2025 | 2020 |
| Audio | ||
| Driver | 40mm custom nickel-plated dynamic drivers | dynamic |
| Driver size | 40 mm | 32 mm |
| Drivers per side | 2 | 2 |
| Frequency response | 20Hz-20kHz | 18Hz-22kHz |
| Impedance | 16 Ω | 32 Ω |
| Sensitivity | - | 108 dB/mW |
| Wireless | ||
| Bluetooth | 5.4 | 5.0 |
| Bluetooth version | 5.4 | 5.0 |
| Codecs | AAC, SBC, LDAC | SBC, AAC, aptX, aptX LL |
| Multipoint pairing | Yes | No |
| Latency | 120 ms | - |
| Wireless range | 10 m | - |
| Battery | ||
| Battery life | 100 h | - |
| Battery life (ANC on) | 50 h | - |
| Full charge time | 120 min | 90 min |
| Quick charge | 5 min = 8 h | - |
| Wireless charging | No | No |
| Features | ||
| Active noise cancelling | Yes | No |
| ANC type | hybrid | none |
| Transparency mode | Yes | No |
| Companion app | Yes | Yes |
| Custom EQ | Yes | Yes |
| Wear detection | Yes | No |
| Controls | both | buttons |
| Voice assistant | - | yes |
| Design | ||
| Weight | 283 g | 238 g |
| Water resistance | IPX2 | none |
| Foldable | No | - |
| Detachable cable | Yes | - |
| USB-C | Yes | Yes |
| Calls | ||
| Microphones | 5 | 1 |
| Call noise reduction | 3-mic ENC architecture | - |
What reviewers said
Nothing CMF Headphone Pro
The CMF Headphone Pro from Nothing is a budget-friendly over-ear wireless headphone that punches well above its price point, offering a robust feature set including hybrid ANC, LDAC support, multipoint Bluetooth, and an impressive 100-hour battery life with ANC off. Its sound is lively and well-tuned for the price, while the build and controls feel solid for the cost, though some compromises exist in water resistance and EQ customization. Overall, it's a standout value pick for anyone seeking long battery life and capable noise cancellation without spending a fortune.
- Pro:Exceptional battery life of up to 100 hours
- Pro:Effective hybrid ANC for the price
- Pro:Supports high-quality LDAC codec
- Con:Basic IPX2 water resistance only
- Con:EQ customization is limited
- Con:Not foldable for easy portability
Sennheiser HD 350BT
The Sennheiser HD 350BT is a lightweight, closed-back wireless over-ear headphone that delivers a balanced, clear sound with a surprisingly engaging soundstage for its price. It offers dependable Bluetooth connectivity, long-lasting battery life that can exceed official estimates, and a practical feature set including multipoint and EQ adjustments. However, it lacks active noise cancellation and bass depth, making it better suited for listeners who prioritize clarity and battery longevity over immersive low-end or noise isolation.
- Pro:Exceptional battery life that often outlasts the rated 30 hours
- Pro:Clear, balanced audio with a wide and engaging soundstage
- Pro:Lightweight and comfortable for extended listening sessions
- Con:No active noise cancellation, only passive isolation
- Con:Bass response is not particularly deep or powerful
- Con:Build feels somewhat plasticky; no wireless charging or wear detection
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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