Shenzhen Tangreat Technology Co., Ltd. was established by Shenzhen Government in 1993, focusing on the development and marketing of telecom products: mobile phone jammer, wireless RF signal detectors and jammer satellite GPS (radio communication, military GPS Jammer, wireless communication Jammer, cellular NMT/CDMA Jammer, walky-talky TETRA Jammer, RKE, TPMS, FM radios Jammer, radio control airplanes Jammer, wireless toys Jammer, cordless analog phones Jammer, intelligent cell phone jammers, mobile phone signal isolators, cellular jammers, cellular phone jammers, cell phone blockers, mobile phone jammers), RF digital signal amplifiers (mobile phone signal amplifiers, mobile signal boosters, GSM repeaters, CDMA repeaters) and antennas. We are a developer, manufacturer and seller of cellular phone jamming devices.Our leaders are mainly from Tsinghua University and Harbin Engineering University. They have used to work in leading companies in telecom industries, such as Huawei Technologies Co., Ltd. and ZTE Corporation. We guarantee the quality of our various products so that we are proud of what we provide our customers. We can also customize any related products to meet customer’s specific needs. We always offer customer the most competitive prices in the industry. We are consumer-oriented and do our best to offer satisfying products to customers. At present, we have set up agents in America, London and other places. With high quality and competitive prices, we can attract more worldwide customers in the near future.