Remote Confirmation (?)2-Way remotes let you stay in touch with your vehicle, confirming your commands (such as remote start, or arming your security system) either with an LCD screen on the remote, or using LED lights. Some 2-Way remotes also act as a security pager, letting you know your siren has been triggered, even if you are too far away to hear it. Remotes (?)The number and type of remotes that come with the system. Range (?)Viper systems use Radio Frequency (RF) technologies to communicate with your vehicle, and these technologies each have a typical operating range. Range varies by the technology used, but also because of environmental factors such as interference from other RF sources. Currently Viper systems with the longest range use Spread Spectrum Technology (SST) with range up to 1 mile. Security (?)Approximately 1.2 million vehicles are stolen in the U.S. every year and $1 billion worth of contents are stolen out of vehicles - so millions of vehicle owners have reached out to Viper security systems as a powerful deterrent against thieves and vandals. Remote Start (?)Remote Start allows you to start your engine by remote control, allowing your vehicle's climate control system to warm up or cool down the cabin before you get in. Range is important with remote start (your vehicle might be parked down the street, or at the far end of a parking lot) and 2-Way remote start systems are preferred (because they confirm that your vehicle has started.) Keyless Entry (?)Unlock your vehicle's doors with the push of a button on your keychain remote. Trunk Pop (?)Viper systems with Trunk Pop can open your power trunk with the push of a button. SmartStart Compatible (?)A Viper SmartStart module can be added to this system to make your vehicle SmartStart ready. Encryption (?)Clone-safe, anti-Code Grabbing technology comes standard on every Viper system. Domelight Supervision (?)A great safety feature: illuminates your vehicle's dome light for 30 seconds when you disarm your security system or unlock the doors of your remote start system. Stinger DoubleGuard Shock Sensor (?)Each Viper security system comes standard with the dual stage Stinger DoubleGuard shock sensor, which detects blows or impacts to the vehicle and can discriminate light impacts from heavy ones. Neo Revenger 6-Tone Siren (?)Light impacts result in WarnAway chirps from the Neo Revenger Siren, while heavier blows result in the full 120 dB 6-Tone sequence, designed to frighten away the would-be thief and call attention to the intrusion attempt. Failsafe Starter Kill (?)Keep your car where you parked it with the Failsafe Starter Kill, an immobilizer designed to prevent hot-wiring. Anti-Carjacking (VRS) (?)VRS is a user-operated anti-carjacking system. Once activated, if your vehicle is carjacked, 30 seconds later the siren will start screaming for help and the lights will flash. When the carjacker pulls over and turns off the ignition, the starter kill will activate, which should prompt the carjacker to then abandon your vehicle for eventual recovery. Guaranteed Protection Plan (GPP) (?)GPP refunds your comprehensive insurance deductible up to $2,500 if your car is stolen within the first year after Viper is installed; $5,000 if it also has Viper Window Film! # of Auxiliary Channels for Optional Functions (?)Auxiliary channels are electrical outputs controlled by your keychain remote, which your installer can interface with systems in your car to allow you to operate them by remote control. Additional parts or labor will be required. GhostLight™ LEDs 1 Responder LE 2-Way and 1 5-button 1-Way 2,000 feet SuperCode™ Option Option 3