Features: . Multi-band (850/900/1900 MHz) or (850/900/1800/1900 MHz) . GSM cell phone carrier . Friendly human voice instruction . Arm/disarm by phone, and remote control . Two-stage shock alarm modes . False alarm trigger prevention . Will call up 3 alarm phone numbers when there is an alarm. . Anti-hijacking . Override switch . Sensitivity of shock sensor adjustable . Checking system status by telephone . Status LED indicator . rigger alarming (when opening the door and engine start) . Shocking alarming . Power off alarming . Bonnet open alarming . Alarm memory recall . Parking reminder . Remote trunk release . Automatic central locking system . Power speaker . Power window output . Remote sound monitoring . Compatible with any cars . GSM car locating and seeking (optional & extra cost)