... LED lighting function 4.For iPad, iPhone, mobile phone Portable Speaker for Mobile Phone with 5200mAh Battery (MP-02) ... start charging 3,you can also use each brand mobile phone dedicated USB adapter for charging. 4,When ... . 2,lnsert your 3.5mm plug into your mobile device 3,Turn up the volume no less than ... 90%. 4,Press the Play button on your mobile device to activate this and music will be played ...