Jammer, Handheld Signal Jammer, Cell Phone Jammer manufacturer / supplier in China, offering Portable 18 Antennas Cell Phone CDMA GSM 2.3.4.5g WiFi GPS Lojack PCS 315 433 868 LTE UHF Signal Jammer for Meeting Room Signal Blocker, Portable18 Bands Customize Frequency 5g GPS WiFi Lojack VHF UHF Signal Jammer, Portable 27 Bands Can Customize Mobile Cell Phone GSM CDMA 2g 3G 4G 5g GPS RF Lojack WiFi VHF UHF 315 433 868 Signal Jammer Blocker and so on.