Throughout the world, car thefts have increased enormously and various agencies/insurance companies have established regulations to prevent these crimes. Lite-On Automotive, an ISO9002 certified manufacturer, with over 17 years of vehicle security system experience, has been designing to prevent the increase of car theft by developing a new reliable series of high-tech VS650 vehicle security systems with the guidelines of many established regulations. VS650 series alarm / immobiliser systems are extremely flexible to be equipped with 1, or 2 port immobiliser with which vehicles would not be driven away from users' parking place so as to ensure further security. Furthermore, VS650 security system offers user flexibility to select favored features through Personal Identification Number. (P.I.N.) is a confidential code that prevents unauthorized tampering with alarm by a potential theft desiring to learn an extra transmitter or by leaving the alarm disable. In addition, VS650 Series alarm / immobiliser systems are also extremely flexible to be supplied with users' selected sensors and sirens; car thefts would be frightened away with our high volume siren. Lite-On Automotive designs and manufactures vehicle security products for companies such as Mitsubishi, Nissan, and GM, and complete kits for numerous customers throughout the world. Lite-On Automotive also designs and manufacture other automotive electronic equipment such as Cruise Control Systems, Automotive Electronics. Electronic compass and many other electronic devices. Lite-On Automotive also provides single and dual stage of shock, microwave, ultrasonic, tilt, glass breakage, back sensors, and six tone with back-up battery siren.