Spec Sheet

HARMAN International Industries, Incorporated
8500 Balboa Boulevard, Northridge, CA 91329 USA
www.jbl.com
Technical Specifications
Driver size: 32mm/1.25" Dynamic driver
Power supply: 5.0V 1.0A
Weight: 115g/0.254 lbs
Battery type: Lithium-ion Polymer
(400mAH, 3.7V)
Charging time: <2 hrs from empty
Music playtime with BT on: 30 hrs
Frequency Response: 20Hz – 20kHz
Impedance: 32 ohm
Sensitivity: 90dB SPL @ 1kHz/1mW
Maximum SPL: 80dB
Microphone sensitivity:
-40 ± 3dBV @ 1kHz/Pa
Bluetooth version: 5.0
Bluetooth profile version: A2DP V1.3,
AVRCP V1.5, HFP V1.6
Bluetooth transmitter frequency range:
2.4GHz – 2.4835GHz
Bluetooth transmitter power: <4dbm
Bluetooth transmitter modulation:
GFSK, π/4 DQPSK, 8DPSK
Maximum operation temperature: 45 °C
Features and Benefits
JBL Safe Sound
JBL legendary sound designed to never exceed 85dB making them safe for even the youngest
music fans.
Bluetooth enabled
A wireless connection up to 15 meters away means no wires to worry about.
Built-in mic
Help your kids stay connected to the world with the built-in mic. They can chat easily with
friends and family during downtime, or teachers while they’re busy learning.
30-hour battery life
30-hour battery life and quick-recharge with user-friendly USB type C. And for a super quick
top-up, get 2 hours of battery life with 5 minutes charge.
Easy controls
Child-friendly control buttons make it easy and safe for children to operate.
Comfort fit
Soft padded headband and ear cushions for a feathery fit.
Ultra-portable
The compact and foldable design combined to make music highly portable.
Make it yours – JBL Sticker set
Kids can personalize the headphones with the stickers set in the box.
What’s in the box:
1 x JR 310BT headphones
1 x USB charging cable
1 x Sticker set
1x QSG
1 x Warranty card
1 x Warning card
© 2020 HARMAN International Industries, Incorporated. All rights reserved. JBL is a trademark of HARMAN
International Industries, Incorporated, registered in the United States and/or other countries. The Bluetooth
®
word
mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by HARMAN
International Industries, Incorporated is under license. Other trademarks and trade names are those of their
respective owners. Features, specifications and appearance are subject to change without notice.
Kids wireless on-ear headphones