Cellphone Jammers, Mobile Phone Signal Booster, Prison Jammer manufacturer / supplier in China, offering Professional 16 Channel Adjustable Jammer 42W Total Power All Mobile/WiFi/GPS/Lojack/Lora Signals, Professional Camera Scanner Detector in Three Frequency Bands with Display, High-Tech Camera Detector with 3 Bands Detecting Frequency of 1.2 GHz, 2.4 GHz and 5.8 GHz and so on.