We are located in ShenZhen. All of our products comply with USA quality standards. We care quality the most. We know you want the best user experience from the 1st draw to the last. Every product goes through the toughest tests to define its limitations. You receive full quality and testing reports for every batch of shipment. 8 years industry experience will avoid you from jumping into repeated problems. Your products start from a way higher level than others. We are always keeping good relationship with our customers by efficient customer service and first-class after sales services. We are the best you are looking for.