*harden treatment of plastic and steel on the body of the lock *built-in patent motion-sensing siren delivers a 100 db blast *when tampering is "felt. "and send signal to receiver immediately *patent air pressure detect function, when the air pressure is detected differently. *the lock will deliver 100db blast and also sending the signal to receive in 10 seconds. *patent supersonics assists air-pressure sensor to provide more accurate detection. *alarm automatically arms itself the instant the security arms are locked in place. *safe distance automatic feedback report by sounds of pager after activating the lock for 10 minutes *transmission distance could up to 1.2km in open area. *postpone activated time with remote control before enter the car. *illuminated LCD display screen of the receiver(remoter) indicate alarm status. *once the lock be activated and the receiver turn on at the same time. *selectable audible or silent (vibrating) alert *built-in LED on the lock body acts as a visual theft deterrent. *2 keys are virtually impossible to pick or duplicate.