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JBL Junior 320 Review | 93 Data compared

Avg. price in UK: ~£35
Avg. price in US: ~$20
Form factor: on-ear
Connectivity: wired
Battery life: N/A hours
Active noise cancellation (ANC): no

JBL Junior 320 review. Compare 93 technical specifications and user reviews to see how it ranks among headphones and if it is worth buying.

6.1

Good

5.3

Good

9.2

Exceptional

2.1
Gaming
Score components:
35.0%
0.0
Audio latency
25.0%
0.0
Low-latency game mode
20.0%
10
Can be used as a headset
12.0%
1.0
Noise-canceling microphone
8.0%
0.0
Battery life
3.3
Travel
Score components:
28.0%
1.0
Active noise cancellation (ANC)
24.0%
0.0
Battery life
18.0%
7.6
Weight
16.0%
10
Multipoint support
14.0%
0.0
Ambient sound mode
5.9
Calls
Score components:
28.0%
1.0
Noise-canceling microphone
24.0%
10
Can be used as a headset
18.0%
10
Multipoint support
16.0%
0.0
Battery life
14.0%
10
Companion app
4.4
Workout
Score components:
28.0%
7.6
Weight
24.0%
1.0
Water resistance
20.0%
4.0
IP rating
16.0%
0.0
Battery life
12.0%
10
Can be used as a headset

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Verdict

The JBL Junior 320 is a wired on-ear headphone specifically engineered for children, featuring 32mm dynamic drivers and a frequency response of 20Hz–20kHz. Its primary characteristic is the JBL Safe Sound technology, which caps the maximum volume at 85dB to protect young ears. These headphones are lightweight at 116.8g and feature a 12mm thick soft-padded headband for long-wearing comfort. Key pros include a built-in microphone for online learning, a travel-friendly foldable design, and the inclusion of a sticker set for personalization. Main cons include a lack of wireless connectivity, which limits movement compared to Bluetooth models, and some users may find the volume-limiting safety feature too quiet in loud environments.

Technical Specifications of JBL Junior 320

Overall score

6.1

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Popularity

What it is: An indicator based on the number of reviews received by the headphones.

When it matters: When you prefer headphones that have already been chosen and reviewed by many other users.

Sound

4.5

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Active noise cancellation (ANC)

What it is: Reduces background noise using active technology

When it matters: When blocking office, travel, or aircraft noise is a priority.

Importance: HIGH

Driver type

What it is: Type of speaker driver technology used

When it matters: When the underlying sound character and driver technology matter to you.

Importance: MEDIUM

dynamic

Driver size

What it is: Diameter of the speaker driver unit

When it matters: When you want extra hardware context behind how the headphones may handle bass weight, scale, or overall presentation.

Importance: MEDIUM

Number of drivers

What it is: Total number of speaker drivers per earcup

When it matters: When multi-driver designs are part of your buying criteria.

Importance: LOW

Lowest frequency

What it is: Lowest audio frequency the headphones can reproduce

When it matters: When deeper bass extension matters for your music or movie listening.

Importance: MEDIUM

Good value: <=10 Hz

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Calls & Controls

6.3

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Noise-canceling microphone

What it is: Built-in microphone reduces background noise during calls

When it matters: When you take calls in busy spaces and want your voice to stay clearer.

Importance: MEDIUM

Can be used as a headset

What it is: Shows whether the headphones can handle voice chat and calls in addition to normal audio playback.

When it matters: When one pair needs to cover music, calls, meetings, and gaming chat.

Importance: MEDIUM

Number of microphones

What it is: Total number of built-in microphones

When it matters: When call pickup quality and beamforming support matter to you.

Importance: LOW

Good value: >=2

Boom microphone

What it is: Includes detachable boom microphone for voice clarity

When it matters: When you need stronger voice clarity for gaming, streaming, or work calls.

Importance: LOW

Microphone SNR

What it is: Signal-to-noise ratio of the microphone

When it matters: When call clarity matters and you want your voice picked up more cleanly instead of buried in background hiss.

Importance: LOW

Good value: >80 dB

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Connectivity

8.1

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Connectivity

What it is: Available connection methods (wired, wireless, Bluetooth, etc.)

When it matters: When the headphones need to match how you listen across wired and wireless devices.

Importance: HIGH

Bluetooth version

What it is: Version of Bluetooth technology supported

When it matters: When wireless stability, efficiency, and feature support matter more than treating Bluetooth as a box-check spec.

Importance: MEDIUM

Good value: >=5.0

Maximum Bluetooth range

What it is: Maximum wireless operating distance from source device

When it matters: When you move around rooms and want fewer dropouts from your source device.

Importance: LOW

Good value: >=10 m

Audio latency

What it is: Delay between audio and video in wireless mode

When it matters: When you watch video or play games and need sound to stay in sync.

Importance: HIGH

Good value: <60 ms

N/A

Multipoint support

What it is: Supports simultaneous connections to multiple devices

When it matters: When you switch often between a phone and a laptop during the day.

Importance: MEDIUM

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Features

4.5

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Ambient sound mode

What it is: Allows external sounds to pass through for awareness

When it matters: When you need to stay aware of traffic, voices, or announcements.

Importance: MEDIUM

N/A

EQ support

What it is: Allows customization of sound profile via equalizer

When it matters: When the stock tuning is not enough and you want to shape bass, mids, or treble to match your taste.

Importance: MEDIUM

Companion app

What it is: Dedicated mobile app for customization and updates

When it matters: When software customization, updates, and extra controls matter.

Importance: MEDIUM

Adjustable ANC levels

What it is: Allows adjustment of noise cancellation intensity levels

When it matters: When you move between quiet rooms, offices, streets, and public transport and do not want one ANC setting for every situation.

Importance: LOW

Good value: >=4

N/A

Voice assistant support

What it is: Compatible with voice assistants like Siri, Alexa, or Google Assistant

When it matters: When hands-free control is part of your daily routine.

Importance: LOW

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Battery

8.7

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Battery life

What it is: Playback time on a single charge

When it matters: When you commute, travel, or work long shifts and do not want charging breaks to interrupt listening.

Importance: HIGH

Good value: >45 hours

N/A

Battery life with ANC

What it is: Playback time with active noise cancellation enabled

When it matters: When you plan to keep noise cancellation on for most of the day.

Importance: HIGH

Good value: >40 hours

N/A

Charging time

What it is: Time required for a full battery charge

When it matters: When you often need the headphones ready again after short breaks.

Importance: MEDIUM

Good value: <=2 hours

Quick charge

What it is: Provides quick playback time with short charging period

When it matters: When a short top-up needs to deliver useful playback before you leave.

Importance: MEDIUM

Battery capacity

What it is: Total energy storage of the internal battery

When it matters: When you are estimating how much battery headroom the design may have before relying only on the official runtime claim.

Importance: MEDIUM

Good value: >=720 mAh

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Design

6.4

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Brand name

What it is: The manufacturer or brand of the product.

When it matters: When you prefer a specific ecosystem, support network, or design philosophy.

Importance: MEDIUM

JBL

Form factor

What it is: Overall design type of the headphones (over-ear, on-ear, in-ear, etc.)

When it matters: When comfort, portability, and isolation depend on the overall headphone style.

Importance: HIGH

on-ear

Weight

What it is: Total weight of the headphones

When it matters: When long listening sessions make wearing comfort more important.

Importance: MEDIUM

Good value: <150 g

Acoustic design

What it is: Type of acoustic design (open-back, closed-back, semi-open)

When it matters: When you need the right balance of isolation, leakage, and soundstage.

Importance: HIGH

closed-back

Clamp force

What it is: Amount of clamping pressure applied to the head

When it matters: When comfort and fit security matter during long sessions.

Importance: MEDIUM

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JBL Junior 320 vs the average headphone

Why is JBL Junior 320 better than the average headphone?

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46.4% lower weight
JBL Junior 320 is lighter than the average headphone (116.8 g vs 218 g). The average pair of headphones weighs 218 g.
What it is: Total weight of the headphones
When it matters: When long listening sessions make wearing comfort more important.
Importance: MEDIUM
Good value: <150 g
JBL Junior 320 is lighter than the average headphone (116.8 g vs 218 g). The average pair of headphones weighs 218 g.116.8 g vs 218 g
Direct 3.5 mm plug
JBL Junior 320 includes a direct 3.5 mm plug, the average headphone does not. 38.8% of headphones have a 3.5 mm male connector.
What it is: Shows whether the headphones end in a built-in 3.5 mm male plug instead of relying on a separate detachable cable.
When it matters: When direct wired compatibility with older devices or adapters matters.
Importance: MEDIUM
JBL Junior 320 includes a direct 3.5 mm plug, the average headphone does not. 38.8% of headphones have a 3.5 mm male connector.
On-device controls
JBL Junior 320 includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
What it is: Physical controls available directly on headphones
When it matters: When you need playback, volume, or call controls to be easy to reach without pulling out your phone.
Importance: MEDIUM
JBL Junior 320 includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
In-line controls
JBL Junior 320 includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
What it is: Controls available on in-line remote of wired cable
When it matters: When your wired setup depends on cable-mounted buttons or call controls.
Importance: LOW
JBL Junior 320 includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
Quick mic mute
JBL Junior 320 includes a quick mic mute, the average headphone does not. 33.5% of headphones support a mute function.
What it is: Ability to mute microphone during calls
When it matters: When you need to silence the mic quickly during meetings or multiplayer games.
Importance: LOW
JBL Junior 320 includes a quick mic mute, the average headphone does not. 33.5% of headphones support a mute function.
Kid-friendly design
JBL Junior 320 has a kid-friendly design, the average headphone does not. 3.5% of headphones are designed for kids.
What it is: Sized and tuned for children’s use and safety
When it matters: When safer sizing and child-focused tuning are important.
Importance: LOW
JBL Junior 320 has a kid-friendly design, the average headphone does not. 3.5% of headphones are designed for kids.
Removable battery
JBL Junior 320 has a removable battery, the average headphone does not. 7.6% of headphones have a removable battery.
What it is: Battery can be detached and replaced
When it matters: When long-term serviceability or battery replacement matters to you.
Importance: LOW
JBL Junior 320 has a removable battery, the average headphone does not. 7.6% of headphones have a removable battery.
14.5% higher user score
JBL Junior 320 has a higher user score than the average headphone (9.16 vs 8.000).
What it is: A rating that combines user reviews and the total number of reviews received by the headphones.
When it matters: When you want to understand how headphones perform in real listening and how reliable they are in terms of comfort, audio quality, battery life, and long-term use.
JBL Junior 320 has a higher user score than the average headphone (9.16 vs 8.000).9.16 vs 8
46.4% lower weight
JBL Junior 320 is lighter than the average headphone (116.8 g vs 218 g). The average pair of headphones weighs 218 g.
Kid-friendly design
JBL Junior 320 has a kid-friendly design, the average headphone does not. 3.5% of headphones are designed for kids.
Removable battery
JBL Junior 320 has a removable battery, the average headphone does not. 7.6% of headphones have a removable battery.
Direct 3.5 mm plug
JBL Junior 320 includes a direct 3.5 mm plug, the average headphone does not. 38.8% of headphones have a 3.5 mm male connector.
On-device controls
JBL Junior 320 includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
In-line controls
JBL Junior 320 includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
Quick mic mute
JBL Junior 320 includes a quick mic mute, the average headphone does not. 33.5% of headphones support a mute function.
7 years newer release date
JBL Junior 320 was released more recently than the average headphone (2,024 vs 2,017). The average headphones were released in 2,017.

Calls & Controls

Why is JBL Junior 320 worse than the average headphone?

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Fixed cable
JBL Junior 320 has a fixed cable, while the average headphone has a detachable one. 62% of headphones have a detachable cable.
31.5 mm tighter earcup height
JBL Junior 320 has tighter earcup height than the average headphone (28.5 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.
14.5 mm tighter earcup width
JBL Junior 320 has tighter earcup width than the average headphone (28.5 mm vs 43 mm). The average headphones offer an inner earcup width of 43 mm.
No travel bag
JBL Junior 320 does not include a travel bag, the average headphone does. 65.2% of headphones include a travel bag.
8 mm smaller driver size
JBL Junior 320 has smaller driver size than the average headphone (32 mm vs 40 mm). The average headphones use a driver size of 40 mm.
24 dB/mW lower sensitivity
JBL Junior 320 has a lower sensitivity than the average headphone (78 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
2 Hz weaker bass extension
JBL Junior 320 has a higher lowest frequency than the average headphone (20 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
No neodymium magnet
JBL Junior 320 does not use neodymium magnets, the average headphone does. 77.4% of headphones use neodymium magnets.
29 dB lower max SPL
JBL Junior 320 has a lower max SPL than the average headphone (81 dB vs 110 dB). The average headphones reach a max SPL of 110 dB.
25 dB SPL lower sound pressure level
JBL Junior 320 has a lower sound pressure level than the average headphone (78 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
16.7% lower battery capacity
JBL Junior 320 has a lower battery capacity than the average headphone (500 mAh vs 600 mAh). The average headphones have a battery capacity of 600 mAh.
No voice assistant support
JBL Junior 320 does not support voice assistants, the average headphone does. 60.8% of headphones support voice assistants.
No voice assistant support
JBL Junior 320 does not support voice assistants, the average headphone does. 60.8% of headphones support voice assistants.
What it is: Compatible with voice assistants like Siri, Alexa, or Google Assistant
When it matters: When hands-free control is part of your daily routine.
Importance: LOW
JBL Junior 320 does not support voice assistants, the average headphone does. 60.8% of headphones support voice assistants.
8 mm smaller driver size
JBL Junior 320 has smaller driver size than the average headphone (32 mm vs 40 mm). The average headphones use a driver size of 40 mm.
What it is: Diameter of the speaker driver unit
When it matters: When you want extra hardware context behind how the headphones may handle bass weight, scale, or overall presentation.
Importance: MEDIUM
JBL Junior 320 has smaller driver size than the average headphone (32 mm vs 40 mm). The average headphones use a driver size of 40 mm.32 mm vs 40 mm
24 dB/mW lower sensitivity
JBL Junior 320 has a lower sensitivity than the average headphone (78 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
What it is: Sound pressure output level per unit of input power
When it matters: When you plan to use weaker sources like phones, handhelds, or entry-level dongles and still want enough volume.
Importance: MEDIUM
Good value: >=106 dB/mW
JBL Junior 320 has a lower sensitivity than the average headphone (78 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.78 dB/mW vs 102 dB/mW
Fixed cable
JBL Junior 320 has a fixed cable, while the average headphone has a detachable one. 62% of headphones have a detachable cable.
What it is: Cable can be removed or replaced
When it matters: When you care about easier cable replacement, simpler storage, or the option to swap to shorter, longer, or upgraded leads.
Importance: MEDIUM
JBL Junior 320 has a fixed cable, while the average headphone has a detachable one. 62% of headphones have a detachable cable.
31.5 mm tighter earcup height
JBL Junior 320 has tighter earcup height than the average headphone (28.5 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.
What it is: Internal height of the earcup cavity
When it matters: When larger ears need enough space inside the earcups.
Importance: MEDIUM
JBL Junior 320 has tighter earcup height than the average headphone (28.5 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.28.5 mm vs 60 mm
2 Hz weaker bass extension
JBL Junior 320 has a higher lowest frequency than the average headphone (20 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
What it is: Lowest audio frequency the headphones can reproduce
When it matters: When deeper bass extension matters for your music or movie listening.
Importance: MEDIUM
Good value: <=10 Hz
JBL Junior 320 has a higher lowest frequency than the average headphone (20 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.20 Hz vs 18 Hz
14.5 mm tighter earcup width
JBL Junior 320 has tighter earcup width than the average headphone (28.5 mm vs 43 mm). The average headphones offer an inner earcup width of 43 mm.
What it is: Internal width of the earcup cavity
When it matters: When earcup fit affects comfort and pressure around your ears.
Importance: MEDIUM
JBL Junior 320 has tighter earcup width than the average headphone (28.5 mm vs 43 mm). The average headphones offer an inner earcup width of 43 mm.28.5 mm vs 43 mm
No travel bag
JBL Junior 320 does not include a travel bag, the average headphone does. 65.2% of headphones include a travel bag.
What it is: Comes with a protective carrying case or pouch
When it matters: When protection in transit matters right out of the box.
Importance: LOW
JBL Junior 320 does not include a travel bag, the average headphone does. 65.2% of headphones include a travel bag.

Graphic comparison of JBL Junior 320 and

Attribute category

Attribute

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Third-party reviews

United Kingdom

United States

(Reviews last updated: June 2026)

What customers like about JBL Junior 320?

Volume-limited to a safe 85dB to protect children's hearing
Excellent battery life, providing up to 50 hours of wireless use (BT version)
Comfortable fit with soft, cushioned ear pads and a lightweight design
Adjustable headband that grows with the child
Helpful parental controls via the JBL Headphones app for monitoring usage
Durable, oversized controls that are easy for small hands to operate
Includes fun stickers for kids to personalize their headphones

What customers dislike about JBL Junior 320?

Ear cushions have been reported to fall off easily or be difficult to reattach
The 320BT wireless version lacks a 3.5mm jack for wired backup use
Lacks advanced playback controls like track skipping
App integration can be slightly 'clunky' for some users
Ear covers may feel small even for some younger children
The overall build may feel somewhat thin or 'plasticky' to some parents

Expert reviews

pickr.com.au

02/10/2025

JBL Junior 320BT review – Pickr

The JBL Junior 320BT is a portable, child-focused wireless headphone model priced at $69.95 AUD that prioritizes hearing safety with a built-in 85dB volume limiter. A standout positive feature is its impressive 50-hour battery life—a 20-hour upgrade from the previous generation—along with a cute, curved design, USB-C charging, an integrated microphone, and included stickers for...Read more

familie.de

03/03/2026

Kids' headphones review: The 10 best over-ear models", "Testing children's headphones: The 10 best over-ear options

This review evaluates the best children's headphones, focusing on over-ear and in-ear models tailored safely for kids. A key highlight is the tigermedia tigerbuddies, praised for excellent padding, dual Bluetooth/cable connections, and clean audio. However, their textile cover is hard to clean if kids snack while listening. The JBL JR 320 stands out with its 30-hour battery life,...Read more

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