12 Antennas Power Portable Mobile Phone Signal Jammer

The latest handheld design 12 all-in-one frequency jammer blocking all cell phone signals, LOJACK GPS, Wi-Fi, RF signals 8.4 watt high output Power and high gain antennas, Jamming range 2 to 20 meters (at-75dBm, depends on signal strength in given area) Good cooling system with cooling fans inside and bigger hot sink With DIP switch, can turn on/off any signal band without affect other bands With car charger, can used in car directly, 12V DC/AC Power supply is also available With built-in bigger battery, can work more than (2.0+ hours) 120 minutes, can be repeated charging Nylon cover for protect and portable.