When it's cold outside and you'd rather wait indoors with a nice cat and a hot cup of coffee before you unlock your car, look no further than the CodeAlarm CA-125 Basic Car Security with Keyless Entry! Not only is it convenient, but it's also an excellent form of security and safety. Features include: One five-button, code hopping, labeled button transmitter One six-button, code hopping, labeled button flashlight transmitter Real panic sound (RPS) horn and lights Progressive find Blue transmitter and dashboard LED light Start interrupt Door lock and unlock Trunk release SongBird upgradeable Telematics upgradeable Requires CA-425 Master Module