>> Shenzhen yuyiye Technology Co., Ltd. is a professional signal jammer factory located in Shenzhen,China from 2014. Our main product is the RF jammer modules, drone signal jammer, Phone WIFI signal jammer, GPS signal jammer. The types include the large fixed type, desktop type, wall-mount type, handheld type, mini type, etc. These products are neccessary for air security or information security in places such as oil depot, chemical factory, mine field, border line petrol station, prison, conference room, examination room, etc. We can handld with customized projects with key know-how and enormous experience, for we have good cooperation with international customers over 80 countries such as USA, Russia, Europe, Middle-East,etc Welcome to visit us at our factory !