The Viper 4115V 1-Way 1-Button Remote Start System is a compact and convenient solution for remote starting your vehicle. With its small size, it is one of the smallest Viper remotes available. The system includes 2 1-button remotes and has a range of up to 1/4 mile. It is also compatible with SmartStart for added convenience. The remote start system features 66-Bit encryption for secure communication and does not have domelight supervision or aux channels.