Shenzhen HuiDeTong Tech. Co., Ltd.

Shenzhen HuiDeTong Technology Co., Ltd specializes in Secrecy Security Technology research, device manufacturing and sales. We have a number of outstanding professionals from top ranking universities and our core team members hold PhD or MSEE degrees from prominent universities in China and overseas. Meanwhile, HDT tech is also the production base of the Shenzhen Castle Security Tech. Co., Ltd, which is the Tech. Institute of State Secrets Bureau. HDT products of Cell phone signal jammer/blocker, coded safe, portable lighting system, smart-armory, Secrets-secured paper shredder and so on products have won us a great reputation in the filed of secrecy and security. Besides, all HDT products have been passed the certification authority of the State sector, with independent intellectual property rights. HDT products are widely used in various ministries, army and police departments. It is worth mentioning that the products line of 'Jing Cheng' has been classified as the recommended pro...