EarFun Air Pro 4
Sennheiser CX 300S Black
What Buyers Say
EarFun Air Pro 4
The EarFun Air Pro 4 earbuds deliver exceptional value, with users praising their high-end sound quality, effective noise cancellation, and robust battery life. Many reviewers note they outperform far more expensive competitors like AirPods Pro and Sony XM4s, especially after customizing the EQ via the app. A few minor issues include occasional fit adjustments and a quirk with single-bud Bluetooth connectivity, but overall sentiment is overwhelmingly positive.
Pros
- Excellent sound quality with LDAC and aptX Lossless
- Effective active noise cancellation
- Long battery life (11 hours per charge)
- Great value for money
- Comfortable and secure fit
Cons
- Single-bud Bluetooth connectivity quirk
- Occasional fit adjustments needed
- LDAC disables multipoint pairing
- Le Audio not working for some users
Sennheiser CX 300S Black
The Sennheiser CX 300S earbuds receive mostly positive feedback for their clear, balanced sound quality and sturdy build, with many users praising the tangle-free cord and comfortable fit. However, several reviews highlight durability issues, including the earbuds detaching from the housing or silicon tips falling off, and one user experienced a split housing after six months. While the audio performance is widely appreciated, concerns about long-term reliability and a few reports of poor customer service temper the overall enthusiasm.
Pros
- Clear balanced sound
- Sturdy build quality
- Tangle-free cord
- Comfortable fit
- Good value for money
Cons
- Durability concerns (earbud detach)
- Silicon tips falling off
- Inconsistent bass response
- Housing splitting after months
- Poor customer service/warranty
Scores
Specifications
| EarFun Air Pro 4 | Sennheiser CX 300S Black | |
|---|---|---|
| Design | ||
| Form Factor | in-ear | in-ear |
| Wearing Style | true wireless | in-ear |
| Ear Tips | 5 pairs of ear tips | XS, S, M, L |
| Weight | 0.05 kg | 0.01 kg★ |
| Audio | ||
| Driver Type | hybrid | — |
| Driver Size | 10 mm★ | — |
| Drivers | 2★ | — |
| Freq Min | 20 Hz | 17 Hz★ |
| Freq Max | 20 kHz | 21 kHz★ |
| Impedance | 32 Ω | 18 Ω |
| Sensitivity | 100 dB | 118 dB★ |
| Hi-Res Audio | ✓★ | — |
| Codecs | aptX Lossless, LDAC, LC3 | — |
| Noise Control | ||
| ANC | ✓★ | ✗ |
| ANC Type | adaptive hybrid | — |
| Transparency | ✗ | ✓★ |
| Connectivity | ||
| Wireless | ✓★ | — |
| Bluetooth | 6.0 | — |
| Profiles | A2DP, AVRCP, HFP | — |
| Multipoint | ✓★ | — |
| Wired Connector | Bluetooth | 3.5mm |
| Earbud Battery | ||
| Battery Life | 11 hrs★ | — |
| Charge Time | 2 hrs★ | — |
| Fast Charging | 10 min for 2 hours playback | — |
| Charging | USB-C★ | proprietary |
| Case Battery | ||
| Case Battery | 54 hrs★ | — |
| Case Charging | USB-C★ | proprietary |
| Wireless Charging | ✓★ | — |
| Microphone | ||
| Microphone | ✓ | ✓ |
| Mic Count | 6★ | — |
| NC Mic | ✓★ | — |
| Features | ||
| Voice Assistant | Google Assistant | — |
| Touch Controls | ✓ | ✓ |
| App | EarFun Audio App | — |
| Gaming Mode | ✓★ | — |
| Bone Conduction | ✗ | — |
| Water Resistance | IP55 | — |
Pros & Cons
EarFun Air Pro 4
- Strong sound (99th percentile)99th %ile
- Strong connectivity (99th percentile)99th %ile
- Strong mic (98th percentile)98th %ile
- Strong user sentiment (97th percentile)97th %ile
Sennheiser CX 300S Black
- Strong comfort (95th percentile)95th %ile
- Strong social proof (73rd percentile)
- Strong sound (68th percentile)
- Below average user sentiment (21st percentile)
- Below average build (34th percentile)
Verdict
Scores 86 overall, wins 7 of 7 usage categories and 15 of 37 specs.