ST3.0 wireless headphones stereo bluetooth headsets foldable earphone animation showing

BT version5.0,suitable for most BT devices,with more stable signal and faster connection speed.Each product is strictly tested to ensure that there is no problem in sending the goods. Built in 250mAh large capacity battery,the standby time up to 100 hours,the music play time up to 10 hours,you can enjoy your game or music for a long time. Folding design,the curved shape with folding feature greatly save your space,you can easily take it.how can we guaranteequality? Always a pre-production sample before mass production; Always final Inspection before shipment;.syi