KZ Duet
KZ
17 Overall Score
vs
EarFun Air Pro 4
EarFun
86 Overall Score
What Buyers Say
KZ Duet
No customer feedback yet
EarFun Air Pro 4
92 out of 100 low confidence 9 reviews
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
Sound quality 8
Noise cancellation 7
Value for money 7
Battery life 4
Build quality 4
App customization 6
Scores
Gaming
Budget
Travel
Fitness
Music
Commute
Calls
Specifications
| KZ Duet | EarFun Air Pro 4 | |
|---|---|---|
| Design | ||
| Form Factor | in-ear | in-ear |
| Wearing Style | in-ear | true wireless |
| Ear Tips | 2 sets of included ear tip sizes | 5 pairs of ear tips |
| Weight | — | 0.05 kg★ |
| Audio | ||
| Driver Type | dual dynamic | hybrid |
| Driver Size | 3.5 mm | 10 mm★ |
| Drivers | 2 | 2 |
| Freq Min | — | 20 Hz★ |
| Freq Max | — | 20 kHz★ |
| Impedance | 25 Ω | 32 Ω |
| Sensitivity | — | 100 dB★ |
| Hi-Res Audio | — | ✓★ |
| Codecs | KZ Duet Wired Earbuds with Mic, Dual Driver in Ear Earphone with 3.5mm Jack | Noise Isolating, Low Profile HiFi Headphone, Clear Full-Range Audio Call and Track Control, Convenient for Travel, Black | aptX Lossless, LDAC, LC3 |
| Noise Control | ||
| ANC | — | ✓★ |
| ANC Type | — | adaptive hybrid |
| Transparency | — | ✗ |
| Connectivity | ||
| Wireless | ✗ | ✓★ |
| Bluetooth | — | 6.0 |
| Profiles | — | A2DP, AVRCP, HFP |
| Multipoint | — | ✓★ |
| Wired Connector | 3.5mm | 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 | 2 | 6★ |
| NC Mic | — | ✓★ |
| Features | ||
| Voice Assistant | voice assistant | Google Assistant |
| Touch Controls | ✓ | ✓ |
| App | — | EarFun Audio App |
| Gaming Mode | — | ✓★ |
| Bone Conduction | — | ✗ |
| Water Resistance | — | IP55 |
Pros & Cons
KZ Duet
- Below average sound (6th percentile)6th %ile
- 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
Verdict
Winner: EarFun Air Pro 4
Scores 86 overall, wins 7 of 7 usage categories and 18 of 37 specs.