JBL JR-310BT Kids - Wireless on-ear headphones

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