mobile phone signal isolator

High RF power, cover 100% drones UAVs Like Dji Phantom 4, Phantom 3 Professional, Advanced, Standard series, Inspire Series... Directional Jamming range: 300~1500 Meters 6-8 Bands in One Device. More details and specifications of this selectable handheld 2G 3G 4G Lojack jammer are just as follows, if you want to know more just come and get the overall information. Advantages Each unit can jam up to 6-8 frequency bands simultaneously. Continuous operation even in hot climates