Shenzhen KingMaster is Power bank Developing , manufacturing and marketing company . Since Several Years of operation and development , we already have a sound high-tech equipment and experienced developing and Designing staff , enthusiastic service hard work and enterprising business team , as well as efficient colla-boratiove production line workers . Our product quality ,delivery time , after- sales service are in the leading position amony peers.And we are accepted and trusted by domestic and international clients .