The mobile phone fastcharger specification: (1) It is suitable to capacity 250-3000mAh mobile battery. Charger Input: AC 220V 50-60Hz 100mA Output: DC4.2V350mA (2) It is protable,small size,and light weight. (3) Theuniversal charger's packing: colour box carton:100pcs/carton,400pcs/carton etc colour box size:6*3.8*8.6cm 100pcs/carton's size:39.5*31.2*18.5cm We also can be according to the customers requests to design and produce.(4) Themobile phonechargercan bemanufacture flatplug or round plug.(5) This mobile phone charger is over current,over vottage,and overload protections(6)Many colors are available.We offer many kinds of chargers for phones, such as travel charger, car charger, universal charger, emergency charger and so on. Welcome to contact me if you have any interests or demand, i will try my best to met your requirement and offer you the best price.