powerful desk14bands jamm ers block ing wifi gps lojack uhf/vhf 315 433 868mhz lojack gsm 2g 3g 4g 5g signal isolator

ability to jam all popular frequencies around the world at the same time,silencers can be adapted to different countries,you can set the parameters manually - if you do not want to jam any signals, you can turn them off all-in-one jamm er is power full to blocks all the signals, jamm ing frequencies the jamm ing radius up to 60meters,longtime working on ac adapter or connet with car battery dc 12v moving used. it can be applied at meeting rooms, conference rooms, museums, galleries, theatres, concert halls, churches, temples, restaurants, classrooms, training centers, factories, banks, trains, bus and more places that require silence, confidentiality and information security.syi