Gift Pro &reg; LED Display 3.4A Dual USB Car Charger Multifunctional Vehicle Mounted Charger With Buzzer Alarm, CE ROHS FCC Authentication 12V-24V input, applicable to all models; 5V ouptut, suitable for mobile phones, tablet and other electronic equipment. New design, adequate output, private mold, safety and environmental protection. Shell:ABS+PC fire protection material. PCB board: all glass double plate, both sides with the copper. The "fuse: strengthen the protection of charging equipment. The intelligent IC: overload, overvoltage, overheating, overcurrent and short-circuit protection. USB rubber core: high temperature resistant rubber core, made of iron, nickel plating. The Spring: steel material, after heat treatment.