1-Way Keyless Entry & Remote Start System with brushed metal 5-Button Transmitter Brushed metal 5-button sidekick remote control transmitter 2000 ft. operating range / 31 programmable options 2-Way data port for easy data module hook-up Mobile Start port for easy connection to Mobile Start MS-3 module The RS4-G5 is our most popular remote start system. It uses (2) newly-styled brushed metal extended-range 5-button transmitters to operate at a range of over 2000 ft. and gives you the added convenience of a full keyless entry system to make getting into your car a little easier as well as trunk pop so you can open your trunk at the click of a button.