Top Digital Industry Co., Ltd has half a decade of experience in developing and manufacturing more than 30 OEM/ODM clients have already partnered with ***** sales network spans North America, Asia, Europe and the Middle East. We manufacture in shenzhen mainly for ***** investors include US-based ***** capacity at our 6, 000-square-meter factory is 200, 000 units.We implement ISO 9001:2000 certified quality management system. And our products carry CE and FCC certification.