CCA Castor Pro
EarFun Air Pro 4
What Buyers Say
CCA Castor Pro
The KZ Castor Pro Bass Enhanced IEMs are overwhelmingly praised for their powerful, controlled bass and excellent clarity, especially when paired with a DAC. Users highlight the dual 10mm drivers, tuneable switches, and great value for the price, though comfort and stock ear tips are common complaints. A few users report durability issues or find the sound less impressive than cheaper alternatives, but the majority consider these a fantastic budget option for bass lovers.
Pros
- Powerful and controlled bass
- Excellent clarity and detail
- Great value for money
- Tuneable bass/treble switches
- Dual 10mm dynamic drivers
Cons
- Uncomfortable stock ear tips
- Mediocre overall comfort
- Requires DAC for best performance
- Durability concerns for some units
- Sound quality drops on low-end devices
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
Scores
Specifications
| CCA Castor Pro | EarFun Air Pro 4 | |
|---|---|---|
| Design | ||
| Form Factor | in-ear | in-ear |
| Wearing Style | — | true wireless |
| Ear Tips | — | 5 pairs of ear tips |
| Weight | — | 0.05 kg★ |
| Audio | ||
| Driver Type | dynamic | hybrid |
| Driver Size | 10 mm | 10 mm |
| Drivers | 2 | 2 |
| Freq Min | — | 20 Hz★ |
| Freq Max | — | 20 kHz★ |
| Impedance | 16 Ω | 32 Ω |
| Sensitivity | — | 100 dB★ |
| Hi-Res Audio | ✓ | ✓ |
| Codecs | KZ Castor Pro Tunable in Ear Monitor, HiFi Improved Bass in Ear Headphone, Dual-Dynamic Driver Gaming Earbuds, IEM Earphones with 2PIN-C Detachable Cable | 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 |
| Earbud Battery | ||
| Battery Life | — | 11 hrs★ |
| Charge Time | — | 2 hrs★ |
| Fast Charging | — | 10 min for 2 hours playback |
| Charging | — | USB-C★ |
| Case Battery | ||
| Case Battery | — | 54 hrs★ |
| Case Charging | — | USB-C★ |
| 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
CCA Castor Pro
- Strong social proof (96th percentile)96th %ile
- Strong sound (85th percentile)85th %ile
- Strong user sentiment (67th percentile)
- Below average comfort (29th percentile)
- Below average anc (31st percentile)
- Below average build (34th percentile)
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
Pricing
CCA Castor Pro offers 1.6x better value for money
Verdict
Scores 86 overall, wins 7 of 7 usage categories and 15 of 37 specs.
