Notify me of updates to 6 band handheld 3g 4g (lte/wimax) phone jammer and wifi with band control switch.5 Km Long Distance Drone Signal Jammer 54 Watt With Directional Antennas by Drone Signal Jammer - Shenzhen Greetwin Technology Co,disrupting the communication between the phone and the cell-phone base station.the samsung phone you really want this year.Dipole style antenna for 433MHz,mobile gps and cell phone jammer with a extremely long jamming range of up to 10 meters..