Product Highlights:

Installation include in most vehicles

arm, disarm, auxiliary, and panic
Stinger® DoubleGuard® Shock Sensor — chirps when the vehicle’s bumped and sets off the alarm with further violations
Neo Revenger® 6-Tone Siren — 120 dB weatherproof siren
Failsafe® Starter Kill prevents hot-wiring
anti-carjacking protection
horn honk, dome light supervision, and parking light flash
valet mode overrides alarm
Other Features:

4 auxiliary channels
compatible with XpressKit DBALL2 vehicle interface module
compatible with all Viper SmartStart smartphone modules
control module: 4-1/8″W x 1-1/4″H x 3-3/4″D
warranty: limited lifetime

The Viper DS4 System sets the standard for remote start and keyless entry systems. Whether it’s the biting cold of winter or the blistering heat of summer, a remote start system enables you to start your car while you get ready, so the temperature is perfect when you leave. The base Viper DS4 System allows you to start your vehicle from up to 150 feet away, lock/unlock your doors, and arm/disarm your existing factory security system with your Smartphone or factory remote.