EarFun Air Pro 4
KZ Duet
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
KZ Duet
The KZ semi-in-ear monitors receive mixed feedback. Many users praise the comfortable fit similar to Apple earbuds and clear, bass-forward sound, with some calling them a solid upgrade from consumer buds. However, a significant minority finds the treble overly bright and fatiguing, and the included silicone tips poorly designed, leading to inconsistent seal and sound. Overall, comfort is a highlight, but tuning preferences vary widely.
Pros
- Comfortable fit similar to Apple earbuds
- Clear and full sound quality
- Good value for money
- Sturdy build quality
- Effective noise cancellation
Cons
- Overly bright and fatiguing treble for some
- Included silicone tips poorly designed
- Inconsistent seal with silicone tips
- Sound changes drastically with seal
- Cheap cable quality
Scores
Specifications
| EarFun Air Pro 4 | KZ Duet | |
|---|---|---|
| Design | ||
| Form Factor | in-ear | in-ear |
| Wearing Style | true wireless | — |
| Ear Tips | 5 pairs of ear tips | 2 sets |
| Weight | 0.05 kg★ | 0.12 kg |
| Audio | ||
| Driver Type | hybrid | dynamic |
| Driver Size | 10 mm | 10 mm |
| Drivers | 2 | 2 |
| Freq Min | 20 Hz★ | — |
| Freq Max | 20 kHz★ | — |
| Impedance | 32 Ω | 25 Ω |
| Sensitivity | 100 dB★ | — |
| Hi-Res Audio | ✓★ | — |
| Codecs | aptX Lossless, LDAC, LC3 | KZ Duet Dual Driver Wired Earbuds with Microphone in-Ear Headphones for PC, Mobile, Nintendo Switch, Noise Isolating Fit, HD Stereo Earphone Convenient for Travel (White, Mic) |
| 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 | USB-C |
| Case Battery | ||
| Case Battery | 54 hrs★ | — |
| Case Charging | USB-C | USB-C |
| Wireless Charging | ✓★ | — |
| Microphone | ||
| Microphone | ✓ | ✓ |
| Mic Count | 6★ | 2 |
| NC Mic | ✓★ | — |
| Features | ||
| Voice Assistant | Google Assistant | voice 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
KZ Duet
- Strong sound (76th percentile)
- Strong comfort (72nd percentile)
- Below average social proof (27th percentile)
- Below average anc (31st percentile)
- Below average user sentiment (33rd percentile)
- Below average build (34th percentile)
Verdict
Scores 86 overall, wins 7 of 7 usage categories and 15 of 37 specs.