Advantage: Output power total 86w, shielding 10-80m,Still depends on the strength signal in given area. Each unit can jam up to 12 frequency bands simultaneously, each frequency band is separate and with adjustable power from max to off (0) 3 pieces cooling fans, not-stop to work with build-in AC adapter Also build-in Battery 24V10Ah or more, continue working 1.5 hours, Battery Power and charger stative display via LED screen Suitcase portable design, option to external battery using also.