JBL Junior Junior 320
form factor on-ear
driver size mm 12
open closed back closed
29 Overall Score
Price ¥6,789
Snapshot
Pros & Cons
Pros
Cons
- Below average connectivity (14th percentile)
- Below average anc (30th percentile)
- Below average build (35th 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.
Owner sentiment has cooled since launch
Based on 10 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Design
| Form Factor | on-ear |
| Open/Closed | closed |
| Foldable | Yes |
| Weight | 0.2 kg / 0.4 lbs |
| Headband | 12mm thick soft pad |
Audio
| Driver Size | 12 |
| Hi-Res Audio | No |
Noise Control
| ANC | No |
| Transparency | No |
Connectivity
| Wireless | No |
| Multipoint | No |
| Wired Connector | 3.5mm |
Microphone
| Microphone | Yes |
| Boom Mic | No |
| Detachable Mic | No |
Features
| Touch Controls | No |
| Gaming Mode | No |
vs Competition
| Spec | JBL Junior Junior 320 | Sony ULT WEAR WHULT900N/B | Sennheiser MOMENTUM 4 M4AEBT | QCY H3 H3 | Bose QuietComfort 884367-0100 | JLab JBuds Lux ANC JBuds Lux ANC |
|---|---|---|---|---|---|---|
| Form Factor | on-ear | over-ear | over-ear | over-ear | over-ear | over-ear |
| Driver Type | - | dynamic | Dynamic | dynamic | Dynamic | Hybrid |
| Driver Size (mm) | 12 | 40 | 42 | 40 | - | 40 |
| Impedance Ohms | - | 314 | 60 | 32 | 32 | 16 |
| Wireless | false | true | true | true | true | true |
| Active Noise Cancellation | false | true | true | true | true | true |
| Open Closed Back | closed | closed | closed | closed | closed | closed |
| Bluetooth Version | - | 5.2 | 5.2 | 5.4 | 5.1 | 5.3 |
| Battery Life Hours | - | 30 | 60 | 60 | 24 | 70 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|
| JBL Junior Junior 320 | 30.4 | 43.8 | 34.5 | 35.7 | 44 | 50.2 | 13.8 | 41.8 |
| Sony ULT WEAR WHULT900N/B Compare | 97.5 | 85.1 | 77.2 | 95.2 | 72.2 | 50.2 | 98.9 | 97.5 |
| Sennheiser MOMENTUM 4 M4AEBT Compare | 97.5 | 85.1 | 77.2 | 97.6 | 89 | 79.3 | 98.9 | 59.5 |
| QCY H3 H3 Compare | 92.2 | 82.8 | 77.2 | 85.8 | 84.9 | 86.6 | 96.6 | 83.1 |
| Bose QuietComfort 884367-0100 Compare | 92.2 | 66.6 | 92.4 | 43.6 | 68.5 | 12.8 | 92.4 | 97.5 |
| JLab JBuds Lux ANC JBuds Lux ANC Compare | 92.2 | 78.5 | 34.5 | 94.2 | 93 | 74.1 | 96.6 | 91.5 |
Price
Value & Pricing
From ¥6,789
Amazon.co.jp 1 offers From ¥6,789
May 4, 2026 ¥6,789
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
