GSM 3G 4G WIFI signal blocker video
5-band portable GPS jammer with GSM 3G, 4G WIFI signal blocker
This 5-band jammer is designed to be very portable and easy to remove the antenna. There are separate frequency switches that can be turned on or off as needed.
1.Effective prevention by GPS satellite positioning tracking, to protect your whereabouts of privacy and confidential information.
2.While effectively jammer CDMA / GSM / DCS / PHS / 3G and other mobile phone signals