Since 1991, SAMBO HITECH CO.,LTD has specialized in manufacturing and exporting of Video Door Phone. Inter Phone and Security System. Our company has had outstanding reputation as a professional manufacturer all over the world for 10 years and has been exporting these products to worldwide. We always try to get competitive advantages with creativity and challenge in the world. Based on our technology and specialized experience, we will keep our brand leading and enriching 21th century.