This is Leo from SUNNY WIN TECHNOLOGY Co., Limited which located in Shenzhen China. Our company is a special manufactory to produce iPhone power pack, Samsung power pack and power bank etc. We have a well organized management system, focusing both on production and exportation. Our R&D team and engineering team are devoted to develop new products seasonally, to meet overseas marketing needs. We aim to bring our customers the newest accessories for the latest models of mobile phones as soon as they come to markets.