TT is a worldwide manufacturer of CCTV video surveillance equipments in Shenzhen China. We focus on CCTV security equipment production, and serving customers from all over the world. TT has achieved remarkable growth in surveillance industry since our commencement and has now become one of the world's most established and innovative manufacturer with a wide range of video surveillance equipment, including: 1. Video capture Cards (DVR cards) 2. CCTV cameras (CCD and CMOS) 3. High speed Dome cameras 4. Digital video recorders (DVR) 5. Wireless equipments 6. CCTV lenses and CCTV accessories. We deliver a full range of CCTV surveillance equipments for our business partners from all over the world, with competitive prices and good services. Our partners have always been satisfied with our prices and product performances. We are confident to fulfill all your needs and looking forward to cooperating with friends from all over the world.