2-Way LCD 4-button remote is backlit, has tone and vibe modes, Zone IDCommand confirmations and event notifications via the LCD remote control1-Way functions with the 4-button companion remote (included)All the advanced security features you expect:Fault-proof starter interruptKeep your car where you parked it with this layer of protection against “hot-wiring” by car thieves.Zone-2 impact sensorDetects blows or impacts to your vehicle with this 2-stage sensor that can react either with chirps or the full wrath of the siren.XR PlusDirected Electronics recently made a significant performance upgrade to the RF receiver section of many of our award-winning security and remote start systems. The new XR+ Extreme Range superheterodyne receiver has an improved sensitivity specification of between 3 dB and 6 dB, which equates to a measurable range increase on the order of 15 percent. It also offers improved image rejection for certain types of RF interference, resulting in improved reliability.ESP2ESP2 is Directed's exclusive serial communications protocol that allows extra ultra-security, high-speed communication between systems and enables many of Directed's key features.Nuisance Prevention® Circuitry (NPC®)Neighborhood-friendly anti-false alarm technologyVirtual TachA dedicated A-to-D converter samples your vehicle’s voltage hundreds of times each second, eliminating the need for a tachometer wire connection.D2D serial data portQuickly connects your Avital system to other interface devices via D2D cables.XCR onboard relaysExtreme capacity remote start relays are built-in to Avital remote start systems.Bitwriter programmableProgram your Avital system with the Innovations Award-winning Bitwriter hand-held programmer