The Viper 5706v Responder LC3 is a complete security and remote start system with a full one mile range. The remote has easy to understand priority icons and a text screen on a LCD display. This allows you to command and monitor the vehicle with simple and prioritized buttons. The five buttons control up to 24 different functions on two cars. Plus it is the slimmest display remote on the market today but still packed with the latest features. Not only is this a security system but it also has remote start capabilities. If the Active Temp Check is selected the Responder will display the temperature inside of the vehicle instead of the time. This comes in handy as it lets you view the temperature before actually walking to your car. Not cool or warm enough in your car yet Use the Runtime reset to extend your runtime and let it reach the perfect conditions. If anything happens to your vehicle the security system will notify you right away if you are within range playing the Revenger siren tones.