... Led indicator, Anti-hijacking, Override switch, Sensitivity of shock sensor adjustable, Power off alarming, Shocking alarming, Bonnet open alarming, Wiretap, Intercom, ... system can dial the others'. Trigger alarming (when the door is opened, the engine will be triggered), so the ... immediately. It can return to the original mode automaticly before power is off, so the owner can operate them easily; ...