Jammer, Drone Detector, Jammer Module manufacturer / supplier in China, offering 16-Band Dual Antenna Handheld Wi-Fi Mobile Positioning Lojack GPS 2g 3G 4G 5g Signal Blocker Blocking Device, 8-Band Handheld Portable Model with a 40-Meter Range, 2g, 3G, 4G, 5g Mobile Phone Signal Shielding and Interference Suppressor Device, Defense Uav 500m 3 Bands Light Weight Handheld GPS 2.4G 5.8g Drone Jammer and so on.