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