Signal Jammer, RF Amplifier, Jammer Module manufacturer / supplier in China, offering Handheld Signal Jammer with Car Charger 433MHz 315 MHz 868MHz Alarm Car Key Signal Blocker, 12 Antenna Desktop 80m 85W Wi-Fi Bluetooth 5g LTE 4G/3G/2g Mobile Signal Blocking Device Desktop Style, Desktop 110W High-Power 16-Band VHF Lojack CDMA GSM 3G 4G 5g Mobile Wi-Fi Cell Phone Signal Jammer and so on.