Sound and Light Alarm,Mute Alarm,Armed Reminder (Optional),Trigger ... Learning Code, car alarm system with GPS function 1. Sound and Light Alarm,Mute Alarm,2.Armed Reminder (Optional), ... can press emergency help switch for 2 seconds secretly. No beep, no light flash, only the LED flashes 2 times ... car alarm system with GPS function ane telephon control Sound and Light Alarm,Mute Alarm,Armed Reminder