Jr310 Bt Kids On-ear Headphone Red

General Specifications Driver size (mm) 32 Number of Microphones 1 Audio Specifications Driver sensitivity at 1kHz/1mW (dB) 90 Dynamic frequency response range (Hz) 20Hz – 20kHz Impedance (ohms) 32 Dimensions Ear Cup Depth (cm) 1.6 Ear Cup Depth (in) 0.6 Ear Cup External Height (cm) 6.5 Ear Cup External Height (in) 2.5 Ear Cup External Width (cm) 6.5 Ear Cup External Width (in) 2.5 Ear Cup Internal Height (cm) 3 Ear Cup Internal Height (in) 1.2 Ear Cup Internal Width (cm) 3 Ear Cup Internal Width (in) 1.2 Charging Cable Length (m) 0.2 Charging Cable Length (ft) 0.7 Weight (g) 115 Weight (oz) 3.88 Control and Connection Specifications Bluetooth profiles HFP v1.5, HSP v1.2, A2DP v1.2, AVRCP v1.5 Bluetooth frequency 2.402GHz-2.48GHz Bluetooth transmitted modulation GFSK,π/4DQPSK, 8DPSK Bluetooth transmitter power 0-4 dbm Battery Charging time (hours from empty) 2 Maximum play time (hours) 30 Features Controls on Ear Cups? Yes Bluetooth Yes Charging cable Yes Foldable Yes Built-in Microphone Yes Fabric headband Yes On-ear Yes Rechargable battery Yes Speed charge Yes Wireless Yes What's in the box? 1 x JR 310BT headphones 1 x USB charging cable 1 x Sticker set 1 x Quick Start Guide 1 x Warranty card 1 x Warning card