Shenzhen Sanan company as a manufacturer of CCTV camera and DVR, we have our own R&D team and more than 500 qualified staff engaging in the security products for more than 10 years. Our products, which include Dome cameras\IP Cameras\Waterproof Cameras\DVRs, are sold to all over the world. We hope to have a friendly cooperation with you soon. i am looking forward to your replay.