JBL Junior 320bt Overview
Junior 320BT Kids Bluetooth On-Ear Headphones from
JBL, kids can safely enjoy listening to music while parents can enjoy some well-deserved peace and quiet. Designed specifically for children, these colorful headphones have been engineered to always output audio below 85 dB, which protects your child’s hearing even at maximum volume.
The Junior 320 wireless headphones feature powerful Bluetooth technology for cable-free listening along with a built-in microphone, great for staying connected with friends, family, or teachers. The soft padded headband and ear cushions are designed to fit smaller heads with comfort. A set of JBL stickers are included so kids can personalize their headphones.
- JBL Safe Sound (<85 dB): JBL legendary sound designed to never exceed 85 dB, making them safe for even the youngest music fans.
- Designed for kids: Custom-designed ear cushions and headband with cool colors.
- Built-in mic: Help your kids stay connected to the world with the built-in mic. They can chat with friends and family during downtime, or teachers while they�re busy learning.
- Comfortable fit: 12mm soft padded headband and ear cushions provide a light-as-a-feather fit on small heads and help block outside noise while preventing sound leakage from the headphones.
- Ultraportable: A compact, foldable design makes music portable.
- 50-hour battery life: Built-in battery recharges via USB-C. For a super-quick boost, a 5 minute charge delivers 3 hours of battery life.
- JBL sticker set: Your child can personalize the headphones with the included stickers.
Items Included
- JBL Junior 320BT Kids Bluetooth On-Ear Headphones (Purple)
- Set of Stickers
- USB-C Charging Case
- Limited 1-Year Manufacturer Warranty
Additional Resources
Quickstart Guide
3.6 MB
JBL Junior 320bt Specs
| Wearing Style |
Dual Ear with Headband Earpiece Swivel: Yes |
| Earpiece Design |
On-Ear (Supra-Aural) |
| Active Noise Cancellation |
No |
| Frequency Response |
20 Hz to 20 kHz (Wired) |
| Built-In Controls |
Yes, on Earpiece |
| Sensors |
No |
| Noise Cancelling Microphone |
No |
| Number of Voice Mics |
1 |
| Runtime |
50 Hours |
| Wearing Style |
Dual Ear with Headband Earpiece Swivel: Yes |
| Earpiece Design |
On-Ear (Supra-Aural) |
| Open/Closed-Back |
Closed-Back |
| Sound Field |
Stereo |
| Number of Drivers |
1 per Earpiece |
| Driver Type |
Dynamic |
| Driver Size |
1.2″ / 30 mm |
| Impedance |
32 Ohms |
| Active Noise Cancellation |
No |
| Frequency Response |
20 Hz to 20 kHz (Wired) |
| Sensitivity |
80 dB at 1 kHz / 1 mW |
| Maximum Sound Pressure Level (SPL) |
81 dB |
| Volume Limiting / Child-Safe |
Yes, Limited to 85 dB Max |
| Built-In Controls |
Yes, on Earpiece |
| Sensors |
No |
| Built-In Mic |
Yes |
| Noise Cancelling Microphone |
No |
| Number of Voice Mics |
1 |
| Sensitivity |
-40 dBV at 1 kHz |
| Wireless |
Bluetooth 5.3 *Built-In |
| Bluetooth Profiles |
A2DP, AVRCP, HFP |
| Audio Connector |
No Wired Audio Support |
| Mobile App Compatible |
Yes: Android & iOS |
| Runtime |
50 Hours |
| Quick Charging Times |
5 Minutes for 3 Hours |
| Recharge Time |
2 Hours |
| Battery Chemistry |
Lithium-Ion |
| Capacity (mAh) |
500 mAh |
| Charging Input |
USB-C |
| Wireless Charging |
No |
| Color |
Purple |
| Environmental Resistance |
No |
| Dimensions |
2.7 x 1.1″ / 67.5 x 28.5 mm |
| Weight |
4.3 oz / 122.2 g |
| Package Weight |
0.62 lb |
| Box Dimensions (LxWxH) |
8.65 x 7.2 x 2.65″ |
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