... to backward,from up to down,it suits different people with different work. 6) The space of the car:it can ... ,maintainance-free,rechargeable strorage battery,long use-life,high effeciencey,with the connection. 8) The charger:has a display to show the ... power of the battery,has the connection to connect with battery. 9) The music system:Mp3 system with a SD card,can download ...