Rupse Dual USB port, 3.4 car quick charger,LED screen, display/input voltage for iPhone, smart phones, tablets, samsung and all USB plug 12V-24V input, fits all vehicle models; 5V output, applicable to mobile phones, tablets and other electronic equipment. Shell: ABS + PC fireproofing environmental material. Smart IC: overload, overvoltage, overheating, overcurrent and short circuit protection Black and white body, classical fashion design. Corresponding USB parameters can be shown while connected to the charging equipment.