Shenzhen LYD Technology Co., Ltd. is a professional security products manufacturer which is specialized in developing, producing and selling of wired and wireless video products. LYD products are mostly exported to the developed countries in America and Europe. The sales network covers more than 50 countries and districts in the world. We always pursue the management concept of being the first security products supplier in the world. After years of hard work of LYD people, LYD brand has ...