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 | JLab JBuds Pods ANC | Soundcore P31i | EarFun Air Pro 4 | Anker Space A40 A3936011 | Baseus Bass BP1 Pro |
|---|---|---|---|---|---|---|
| Form Factor | in-ear | in-ear | in-ear | in-ear | in-ear | in-ear |
| Driver Type | dynamic | dynamic | dynamic | hybrid | DLC Driver | dynamic |
| Wireless | false | true | true | true | true | true |
| Active Noise Cancellation | false | true | true | true | true | true |
| Bluetooth Version | - | 5.4 | 6.1 | 5.4 | 5.2 | 6.0 |
| Battery Life Hours | - | 10 | 10 | 11 | 10 | 12 |
| Case Battery Hours | - | 56 | 50 | 52 | 50 | 55 |
| Water Resistance | IPX4 | IP55 | IP55 | IPX5 | IPX4 | 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 | 67.7 |
| JLab JBuds Pods ANC Compare | 93.5 | 97.4 | 90.8 | 87.1 | 94 | 93.2 | 92.5 | 98.2 | 95.5 | 32.9 |
| Soundcore P31i Compare | 89.9 | 97.4 | 90.8 | 96.6 | 92.2 | 69.8 | 97.3 | 86.2 | 89.7 | 57.5 |
| EarFun Air Pro 4 Compare | 89.9 | 97.4 | 90.8 | 99.9 | 93.2 | 69.8 | 97.3 | 99.2 | 89.7 | 23.5 |
| Anker Space A40 A3936011 Compare | 97.5 | 81 | 78.8 | 88.7 | 92.2 | 93.2 | 92.5 | 96.8 | 72.9 | 32.8 |
| Baseus Bass BP1 Pro Compare | 97.5 | 97.4 | 90.8 | 88.3 | 94.3 | 69.8 | 92.5 | 98.2 | 81.2 | 52.8 |
Price
Value & Pricing
Price History
Usage Scores
- Calls31
- Music38.8
- Overall38.6
- Budget66.1
- 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.
