*BTVersion 5.0 *Tounch operation *Blateral headset call *support Siri *4000mAh> 4times long time power reserve in the charging box (It can charge earbuds 4 times) *45mAh> 2.5h long time standby for 20h, calling time for 2.5hours. *Strong power reserve,long standby 80hours. * New touch technology, 1 : 1 size, comfortable to wear * Compatible with iOS and Android