KZ Castor
The dual-dynamic driver setup targets the Harman curve with enhanced bass, while four tuning switches let you create 16 distinct audio profiles for precise sound shaping. Its injection-molded shells achieve a 0.01mm precision tolerance, offering a more durable and consistent build than typical 3D-printed IEMs. This wired earphone is best for budget-conscious listeners who want a customizable, bass-forward sound signature for music and gaming at a desk.
No current retailer price
Snapshot
Pros & Cons
Pros
- Strong sound (84th percentile) 84th
- Strong build (79th percentile) 79th
- Strong comfort (70th percentile) 70th
- Strong affordability (68th percentile) 68th
Cons
- Below average connectivity (11th percentile)
- Below average anc (31st percentile)
- Below average user sentiment (34th percentile)
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews - so you can see whether early praise held up.
Based on 11 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Design
| Form Factor | in-ear |
| Wearing Style | ear-hook |
| Ear Tips | all shapes and sizes |
| Weight | 0.1 kg / 0.2 lbs |
Audio
| Driver Type | dynamic |
| Driver Size | 10 |
| Drivers | 2 |
| Impedance | 20 |
| Hi-Res Audio | Yes |
| Codecs | KZ Castor in-Ear Monitor Dual-Dynamic Drivers Headphones with 4 Tuning Switches HiFi Noise Cancelling Earphones, Clarity Stereo Sound Earbuds for Audio Engineers, Musicians(Silver, with Mic) |
Noise Control
| ANC | No |
Connectivity
| Wireless | No |
Earbud Battery
| Charging | proprietary |
Microphone
| Microphone | Yes |
| NC Mic | Yes |
Features
| Bone Conduction | No |
| Water Resistance | IPX4 |
vs Competition
| Spec | KZ Castor | Technics EAH-AZ100 | JLab JBuds Pods ANC | Samsung Galaxy Buds Buds3 Pro | Apple AirPods Pro 3rd Generation | Soundcore P31i |
|---|---|---|---|---|---|---|
| Form Factor | in-ear | in-ear | in-ear | in-ear | in-ear | in-ear |
| Driver Type | dynamic | dynamic | dynamic | dynamic | dynamic | dynamic |
| Wireless | false | true | true | true | true | true |
| Active Noise Cancellation | false | true | true | true | true | true |
| Bluetooth Version | - | 5.3 | 5.4 | 5.4 | 5.3 | 6.1 |
| Battery Life Hours | - | 8 | 10 | 6 | 8 | 10 |
| Case Battery Hours | - | 28 | 56 | 26 | 24 | 50 |
| Water Resistance | IPX4 | IPX4 | IP55 | IP57 | IP57 | IP55 |
| Multipoint | - | true | true | true | true | - |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | User Sentiment | Connectivity | Social Proof | Affordability |
|---|---|---|---|---|---|---|---|---|---|---|
| KZ Castor | 30.8 | 65.3 | 78.8 | 84.1 | 44.2 | 69.8 | 33.7 | 11.3 | 62.6 | 67.8 |
| Technics EAH-AZ100 Compare | 97.5 | 97.4 | 78.8 | 99.7 | 76.7 | 93.2 | 92.5 | 99.8 | 81.2 | 2.9 |
| JLab JBuds Pods ANC Compare | 93.6 | 97.4 | 90.8 | 87.1 | 94 | 93.2 | 92.5 | 98.2 | 95.5 | 33 |
| Samsung Galaxy Buds Buds3 Pro Compare | 97.5 | 97.4 | 98.9 | 92.2 | 70.5 | 93.2 | 33.7 | 99.6 | 89.7 | 7.2 |
| Apple AirPods Pro 3rd Generation Compare | 97.5 | 80.9 | 98.9 | 90.3 | 73.1 | 69.8 | 33.7 | 99.6 | 99.3 | 10.9 |
| Soundcore P31i Compare | 89.9 | 97.4 | 90.8 | 96.6 | 92.2 | 69.8 | 97.3 | 86.3 | 89.7 | 57.3 |
Usage Scores
- Calls31
- Music38.8
- Overall38.6
- Budget66.2
- Gaming39.4
- Travel30.5
- Commute28.2
- Fitness51.3
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
