Founded in 2008, Shenzhen Changjingyuan Technology Co. Ltd is specialized in manufacturing power bank, mobile phone battery, mobile phone case, screen protector, in-car charger, card reader and more.We own a factory which covers an area of 2, 000m2. With our ten production lines, we are able to produce 800, 000 mobile batteries, 300, 000 power banks, 300, 000 cases and up to 1, 600, 000 screen protectors. 20 QC technicians are conducting strict inspection on our products, so as to control the defect rate under 0.05 percent. And all of our items carry RoHS, CE and FCC marks. As a consequence, we maintain a repeat order rate of 100 percent.Backed by five R&D engineers with an average of five years related working experience who have worked for Foxconn or Huawei, we are capable of releasing up to 10 new products monthly. We can also deliver ODM sample orders in as fast as one day. And we accepted orders starting at only 100 pieces.