TOPS has been engaged for years in the manufacture of power supply, include mobile charger,car charger,adapter,powerpack,and the plastc case,here are accumulated a wealth of experience in power,So far,we owns a professional R&D team who are devoted to researching and developping new products,so that our products can update the new machines.TOPS have excellent ID team,in charge of design the satisfying new products for customers with our outst