PR Tech car alarm system 1 way with flip key remote control central door locking keyless entry anti theft Vehicle Burglar Security Protection System Warning identification, anti-hijacking.Auto central door locking system. Car finding / help calling, LED indicator.Engine cut off, emergency disarm. Intruding warning, power off memory.Side door trigger (negative signal). Warning of improper closed of doors. Warning of abnormal situation.Two stage siren verification Disarm doors sensor automatically.