... ,passive ,prevent sectional yards ,prevent removal ,easy op anti theft alarm system for car 1.Features Automatic After 15 second turn ... 5 seconds after won again,anti-theft system auto reply to former state powerprotecting the alarm On alert for open the ... can't start ,simultaneously alert (general orginal horn when alarm ) 3.Technical parametersworking voltage12V(9V~15V)static state<20MAoperating ...