JBL Junior 320BT JBLJR320BTBLUAM
The 40mm dynamic drivers deliver JBL’s Pure Bass Sound with Spatial Audio, while adaptive noise canceling and a 50-hour battery life provide all-day immersion. Its lightweight 227g foldable design and multipoint Bluetooth 5.3 connectivity add practical portability and convenience. This headphone is best for daily commuters and budget-conscious listeners who prioritize bass-forward sound and extensive battery life over studio accuracy.
Snapshot
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.
- Q2 202673/100
Buyers praised fit, comfort, volume control, and battery life for kids. One reported durability issue with ear cushion on a toddler.
- Fits well and comfortable for children aged 5-9.
- Volume control feature appreciated for hearing safety.
- Good battery life and comes pre-charged.
- Ear cushion not durable for toddlers, hard to reattach.
- Q1 202587/100
Kids love these headphones for their comfort, ease of use, and JBL sound. Parental volume control, long battery life, and flexibility for travel are praised, though some note the build feels fragile.
- Comfortable fit for kids, with plush pads and correct clamp force.
- Parental control app allows volume limiting and screen time management.
- Sound quality is good but not exceptional; JBL bass is present but can be underwhelming.
- Headphones feel a little cheap and fragile, raising durability concerns.
Based on 11 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 | 0.1 kg / 0.3 lbs |
| Ear Cushion | soft over-ear cups |
| Headband | 12mm thick soft pad on the headband |
Audio
| Driver Type | dynamic |
| Driver Size | 30 |
| Drivers | 1 |
| Freq Min | 20 |
| Freq Max | 20000 |
| Impedance | 32 |
| Sensitivity | 80 |
| Max SPL | 81 |
| Hi-Res Audio | Yes |
Noise Control
| ANC | No |
| ANC Type | adaptive |
| Transparency | Yes |
Connectivity
| Wireless | Yes |
| Bluetooth | 5.3 |
| Profiles | A2DP, AVRCP, HFP |
| Multipoint | Yes |
| Wired Connector | 3.5mm |
| Detachable Cable | Yes |
| Cable Length | 1.2 |
Battery
| Battery Life | 50 |
| Charge Time | 2 |
| Fast Charging | 5 Minutes for 3 Hours |
| Charging | USB-C |
| Capacity | 500 |
Microphone
| Microphone | Yes |
| Mic Count | 1 |
| NC Mic | No |
| Boom Mic | No |
| Detachable Mic | No |
Features
| Voice Assistant | Alexa, Google Assistant |
| Touch Controls | No |
| App | JBL Headphones |
| Volume Limiting | Yes |
| Gaming Mode | No |
vs Competition
| Spec | JBL Junior 320BT JBLJR320BTBLUAM | Sony ULT WEAR WHULT900N/B | Sennheiser MOMENTUM 4 700383 | TOZO HT2 | Beyerdynamic Aventho 1001609 | Bose QuietComfort 884367-0100 |
|---|---|---|---|---|---|---|
| Form Factor | on-ear | over-ear | over-ear | over-ear | on-ear | over-ear |
| Driver Type | dynamic | dynamic | transducers | dynamic | dynamic | dynamic |
| Driver Size (mm) | 30 | 40 | 42 | 40 | 45 | - |
| Impedance Ohms | 32 | 314 | - | 32 | 48 | 32 |
| Wireless | true | 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 | 5.3 | 5.2 | 5.2 | 5.3 | 5.4 | 5.1 |
| Battery Life Hours | 50 | 30 | 60 | 60 | 40 | 24 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | User Sentiment | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|---|
| JBL Junior 320BT JBLJR320BTBLUAM | 66.3 | 47.6 | 77.7 | 58.6 | 85.9 | 95.7 | 45.4 | 98.6 | 49.5 |
| Sony ULT WEAR WHULT900N/B Compare | 98 | 85.3 | 77.7 | 95.6 | 76.1 | 53.6 | 70.6 | 98.9 | 87.5 |
| Sennheiser MOMENTUM 4 700383 Compare | 98 | 85.3 | 77.7 | 94 | 90.7 | 53.6 | 0 | 88.5 | 87.5 |
| TOZO HT2 Compare | 93.4 | 83.2 | 95.7 | 99.1 | 90.7 | 81 | 87 | 83.1 | 87.5 |
| Beyerdynamic Aventho 1001609 Compare | 98 | 79.2 | 95.7 | 98.3 | 81.5 | 53.6 | 0 | 97.7 | 55.1 |
| Bose QuietComfort 884367-0100 Compare | 93.4 | 68.1 | 92.4 | 48.9 | 72.7 | 16 | 95.9 | 93.4 | 93.9 |
