high power 6bands mobile phone signal jamm er indoor using gsm 3g 4g 2.4ghz block er jamm ing up to 150m, Silver

each unit can jam up to 6 frequency bands simultaneously, each frequency band is separate and with adjustable power from max to off (0), led indicator lights display power supply output power up to 90w, you can choose high gain 5-7 dbi omni or panel directional antennas, shield ing 30-200m,still depends on the strength signal in given area. 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