Description:bluetooth version: V5.0+EDRHeadphone working time: about 3-4 hoursHeadphone standby time: about 60 hoursCharging time: about 1 hourBattery..
CompatbilityXiaomiCompatible ModelRedmi 9Material Hydrogel TPUFeatureHydrogel Film, Auto repair, Positioning Stick Screen Protector, Super High Transm..