Langshixing electronic(Shenzhen)Co.,ltd , founded in 2011 and focus on professional security surveillance & smart home , over the past year’s development ,we have been experienced in research and design of cutting-edge technology equipment , we are not only marketing our own brand “AVstart” , but also support OEM and ODM service for many famous brand.with more than 200staff ,and take up 4000? , Langshixing all in one system from PCBA’s processing (SMT,DIP) to assembly and testing process , as main manufacturer of security products in China , the company can produce 260000PCS monthly ,with rich product line , can provide customized products and services to fully meet customer’s demand ,covering all civilian video products like wireless outdoor/indoor camera , NVR kit , rechargeable battery-powered camera, wireless door bell , baby monitor etc . easy to provide convenient one-stop procurement services for customers . High quality and good reputation makes our products are exported to USA, Europe ,the middle East and Southeast Asia , and widely used in home and pubic security, All products have passed CE , ROHS,FCC, CCC certification ,  products are hot selling on Amazon ,eBay , shopee, lazada and same time available in retail chain stores such as Walmart ,bestbuy .