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Safe, lightweight and sized for kids, the JBL Jr310BT wireless headphones safely deliver up to 30 hours of legendary JBL sound and fun for the youngest music fans. Headphones are designed to never exceed 85dB to protect hearing, with controls that can be easily operated by the children themselves. Kids listen in comfort with custom designed soft padded headband and ear cushions for a soft fit. And every headphone is different as the JBL Jr310BT can be customized with the available, reusable stickers for even more fun!

Audio Specifications
Power supply: 5.0 V 1.0 A
Frequency Response: 20 Hz – 20 kHz
Impedance: 32 ohm
Sensitivity: 90 dB SPL @ 1kHz / 1mW
Maximum SPL: 80 dB
Microphone sensitivity: -40 ± 3 dBV @ 1kHz / Pa
Maximum operation temperature: 45 °C

Dimensions
Driver size: 32 mm / 1.25 " Dynamic driver
Weight: 115 g / 0.254 lbs

Control and Connection Specifications
Bluetooth version: 5.0
Bluetooth profile version: A2DP V1.3, AVRCP V1.5,HFP V1.6
Bluetooth transmitter frequency range: 2.4 GHz -2.4835 GHz
Bluetooth transmitter power: <4 dbm
Bluetooth transmitter modulation: GFSK, π/4 DQPSK, 8DPSK

Battery
Battery type: Lithium-ion Polymer (400 mAH, 3.7 V)
Charging time: <2 hrs from empty
Music playtime with BT on: 30 hrs

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