... box ,or LED screen as re Electric Advertising cargo tricycle/trike for Ice Cream, Pizza, Bread, drinks,foods promotion ... of speaker50Wplaying typesMPS/SD card/usb/FMElectric Advertising cargo tricycle/trike for Ice Cream, Pizza, Bread, drinks,foods promotion ... .2.environmental protection and flexibility.3.electrical type with cheap price. Electric Advertising cargo tricycle/trike for Ice Cream, Pizza, ...