Here the signal jammer that you are viewing is the High Power 3G 4G Mobile Phone Jammer and UHF VHF WiFi Jammer, which is the new 8 bands Jammer, and have good jamming effect for all mobile phone 2G,3G,4G signal and WIFI,UHF,VHF bands.
And because of having used the stronger and longer External Omni-directional antennas, all the TX frequency covered down link only, and latest design and Good cooling system with cooling fan inside, so with 18W high output power the jamming distance of this high power 3G 4G UHF VHF WiFi jammer is up to 40 meters at most while 15 meters to block the UHF VHF signals. And since designed with the 12V car charger, this mobile phone UHF VHF WiFi jammer can be easily use in the car even it is the desktop style jammer.
And because of the good function and working condition for places such as the meeting rooms, conference rooms, museums, galleries, theatres, concert halls, churches, temples, restaurants, classrooms, training centers, factories, banks, trains, bus and more this 3G 4G UHF VHF WiFi signal blocker can be widely used. Moreover what make you surprise is that you can select any 8 bands for your require and ODM and OEM orders are welcome.
Important Notes for Jamming Distance: The jamming distances we mentioned on website are for customer's reference only. The actual jamming distance will be varied depending on the signal strength and the use location and if full charges, etc.
Important Notes for Portable Jammers with No Cooling Fan: Do not use the jammer when it is charging, or it will burn the jammer as it has no built-in fan. If because of this factor due to the broken of the jammer, the customer will lose the authority of free repairation .