Shenzhen Queenstech Co.,ltd is specialized in mobile chargers, power bank and other kinds of mobile accessories.We have a long history in mobile accessories field,in 2009,we produce mobile charger,later we have customers need power bank,so we expand our line for power bank,till now we have customers all over the world,our professional services,reliable services and good price help our customers save time and money in our business.Many customers have cooperated with us over 5 years,so we are worth you to trust and cooperate.