specification:
Headphone battery: 50 mah rechargeable battery
battery box: 300mah
working distance: 10 m
waiting time: 40 hours
playing time: about 6 hours
earphone size: 23 * 23 * 17mm, nw: 10g
charging box: 70 * 40 * 30mm, nw: 45g
support: hfp, hsp, a2dp, avrcp and spp
compatibility: iphone, android phone and most bluetooth devices
function: hands-free call, auto disconnect, dsp deep noise reduction, smartphone and earphone charging case charge
