JBL Live 670NC

{ "review": "최대 85dB SPL로 음량을 제한해 아이의 청력을 보호하며, 32mm 드라이버와 50시간 배터리로 안전하고 긴 사용 시간을 제공한다. 접이식 구조와 부드러운 이어쿠션은 휴대성과 착용감을 높이고, 동봉된 JBL 스티커 세트가 아이들에게 재미를 더한다. 부모가 안심할 수 있도록 설계되어 어린이의 음악 감상과 온라인 학습에 가장 적합하다." }

★★★★★ 4.7 (571)
form factor on-ear
driver type Dynamic
driver size mm 40
impedance ohms 32
wireless true
active noise cancellation true
open closed back closed
bluetooth version 5.3
JBL Live 670NC headphones
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이 Headphones 정보

With the blue 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.

  • Designed for Kids
  • Wireless Bluetooth
  • 32mm Drivers
  • <85 dB SPL to Protect Your Child's Ears

The 30-Second Version

The JBL Junior 320BT nails the kid headphone formula with best-in-class ANC, a rock-solid 85dB volume cap, and a 50-hour battery. Fit is comfy for ages 5-9, but ear cushions can pop off and there's no parent monitoring. If you spot them around $45, grab a pair.

Overview

JBL's Junior 320BT are on-ear headphones built for kids aged about 5 to 9, with a hard volume cap at 85dB to protect little ears. They're wireless, super light at 227g, and come with a 50-hour battery that'll easily survive a week of car rides and screen time. The fit is plush and the bright color options are a hit, but a few design oddities keep them from being a perfect parent pacifier.

Performance

The ANC is shockingly effective, sitting in the 98th percentile of our database, which means it kills background hum better than most adult headphones at twice the price. Connectivity is equally stellar, with Bluetooth 5.3 and multipoint, so switching between a tablet and a phone is seamless. Sound quality is decent, nothing audiophile-grade, but it stays clean and capped safely below 85dB. The mic technically exists, but it's not something you'd rely on for calls, and parents don't get a monitoring mode to hear what the kids are listening to. Battery life is a true strength, landing in the 84th percentile, easily eclipsing the 50-hour claim in real use.

Performance Percentiles

Anc 97.7
Mic 85.1
Build 77.1
Sound 73.2
Battery 83.8
Comfort 74.4
Connectivity 97.2
Social Proof 93.6

Pros & Cons

Pros

  • Volume stays pinned at or below 85dB, so no accidental ear damage. 98th
  • Battery life is ridiculous, 50+ hours means you forget to charge it for weeks. 97th
  • ANC is practically best-in-class for kids' headphones. 94th
  • Foldable design makes them easy to toss in a backpack, even if some users disagree. 85th

Cons

  • Ear cushions detach too easily, and toddlers will absolutely peel them off.
  • Reattaching those cushions is an exercise in frustration.
  • No parent monitoring feature means you're in the dark about volume and content.
  • A few owners say they're not actually foldable, which creates confusion.

The Word on the Street

4.7/5 (2848 reviews)
👍 Parents consistently say the headphones are comfortable for kids and the volume limiting gives them peace of mind.
👍 A lot of owners rave about the battery lasting days between charges, even with heavy use.
👎 Several reviews mention the ear cushions come off too easily, especially with younger children, and are a pain to put back on.

Specifications

Full Specifications

Design

Form Factor on-ear
Open/Closed closed
Foldable Yes
Weight 0.2 kg / 0.5 lbs
Ear Cushion fabric
Headband fabric

Audio

Driver Type Dynamic
Driver Size 40
Drivers 1
Freq Min 20
Freq Max 20000
Impedance 32
Sensitivity 100
Max SPL 81

Noise Control

ANC Yes
ANC Type adaptive
Transparency Yes

Connectivity

Wireless Yes
Bluetooth 5.3
Profiles A2DP, AVRCP, HFP
Multipoint Yes
Wired Connector 3.5mm
Detachable Cable Yes

Battery

Battery Life 50
Charge Time 2
Fast Charging 5min=4hrs
Charging USB-C
Capacity 500

Microphone

Microphone Yes
Mic Count 4
NC Mic Yes

Features

Voice Assistant Alexa, Google Assistant
Touch Controls No
App JBL Headphones
Volume Limiting Yes

Value & Pricing

Pricing is all over the map, from a sensible $45 at some retailers to an absurd $1,169 at others. Assuming you're not paying a four-figure ransom, these are a solid buy. The ANC alone puts them ahead of most kids' options, and the battery means one less thing to charge at night. If you find them under $50, it's a no-brainer for peace and quiet.

£129

vs Competition

The Sony ULT WEAR and Sennheiser Accentum Plus are grown-up headphones that also work for older kids, but they lack the hard volume limit and are pricier. The Audio-Technica ATH-S300BT and Soundcore Space One are closer rivals in price, but their ANC can't match the JBL's. TOZO HT3 undercuts on cost but feels flimsier. If safety and battery are your top priorities, the JBL Junior 320BT wins this round.

Spec JBL Live 670NC Sony WH-1000XM6 WH-1000XM6 Sennheiser MOMENTUM 4 M4AEBT Bose QuietComfort Ultra QuietComfort Ultra Technics EAH-A800 EAH-A800 Audio-Technica ATH-S300BT ATH-S300BT
Form Factor on-ear over-ear over-ear over-ear over-ear over-ear
Driver Type Dynamic dynamic Dynamic Dynamic PEEK/Polyurethane 3-Layer Diaphragm dynamic
Driver Size (mm) 40 30 42 - 40 40
Impedance Ohms 32 48 470 32 34 45
Wireless true true true true true true
Active Noise Cancellation true true true true true true
Open Closed Back closed closed closed closed closed closed
Bluetooth Version 5.3 5.3 5.2 5.3 5.2 5.1
Battery Life Hours 50 30 60 24 50 90
Compare Compare Compare Compare Compare
Product AncMicBuildSoundBatteryComfortConnectivitySocial Proof
JBL Live 670NC 97.785.177.173.283.874.497.293.6
Sony WH-1000XM6 WH-1000XM6 Compare 97.791.392.395.172.779.599.893.6
Sennheiser MOMENTUM 4 M4AEBT Compare 97.785.177.197.689.379.59979
Bose QuietComfort Ultra QuietComfort Ultra Compare 87.578.695.947.969.379.599.493.6
Technics EAH-A800 EAH-A800 Compare 92.598.377.196.983.850.893.198.8
Audio-Technica ATH-S300BT ATH-S300BT Compare 92.578.677.185.197.250.899.898.8

Common Questions

Q: Is the volume really capped at 85dB, and can kids override it?

Yes, it's hardwired to stay at or below 85dB SPL, even at max volume. There's no way for a child to bypass it from the headphones themselves.

Q: How long does the battery actually last with ANC on?

In real-world use, you'll easily get over 50 hours, and the quick-charge gives you 4 hours from just a 5-minute top-up, which is a lifesaver for forgetful parents.

Q: Are these suitable for a 3-year-old?

They're technically designed for ages 5-9, so a smaller child might find the fit loose, and the detachable ear cushions could be a choking hazard if pulled off.

Who Should Skip This

If your kid is a toddler who treats gear like a puzzle to dismantle, skip these. The ear cushions come off too easily and you'll spend more time reattaching them than listening. Also, if you need parent monitoring to hear what's playing or to take calls, look at options like the Puro Sound Labs BT2200 instead.

Verdict

Parents who want a set-it-and-forget-it solution for younger kids will love these. The volume limiter is the headline act, backed by killer ANC and battery life that outlasts even the longest family road trip. Just keep an eye on the ear cushions if your child is still in the destructive phase, and accept that you won't be eavesdropping on their Disney marathons.

Usage Scores

Work (77.8)Calls (71.2)Music (73.4)Overall (86.5)Budget (87.9)Gaming (79.3)Studio (63.4)Commute (71.5)

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