bluetooth earphone

connect type:bluetooth wireless

function: wireless, voice call

Frequency range:20-20KHz

sensitivety: 108db±3dB

bluetooth version:V4.0 CSR8635

charging port:micro-USB port

battery type:li-ion battery

capacity: 400mAh

self-charging time:1.5H

calling time:10H

music play time: 8H

Color:black，silver