Best quality digital to analog audio converter for cctv security

Shenzhen Yongjiasheng Technologies Co., Ltd. is a manufacturer of security products with well-equipped testing facilities and strong technical force.With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in security industry and other industries.
Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs.We welcome new and old customers to contact us for future business relationships and mutual success!

1.Q: Are you a factory or trading company?
A: We are manufacturer.
2.Q: How can I get some samples?
A: We are honored to offer you samples, pls contact our staff and leave detailed contact information, we promise to keep your information confidential.
3.Q: How does your factory do regarding quality control?
A: Quality is the priority. We always attach great importance to quality controlling from the start to the end. All our products have gained CE, FCC, ROHS certification.
4.Q:What can you do?
A:1.All of our products have proceeded aging test before shipment and we guarantee safety while using our products.
2.Support imprint your logo on products and let your logo shine anywhere. 3.OEM/ODM orders are warmly welcomed!
5.Q:Warranty and return:
A:1.All products and accessories have been tested by 3 times before ship out.
2.We own the best after-sale service team, if any problem happens, our team will do our best to solve it for you.