• Functionality: These are aftermarket automotive security and remote start systems.

• Features: Typical features include remote keyless entry, dual-stage shock sensors, starter interrupt, flashing parking lights, and remote start.

• Technology: Many models are "two-way," meaning the remote provides confirmation of commands via an LCD screen. They often have a telematics port for adding functionality like smartphone control through an app.

• Installation: Installation requires professional expertise to connect the system to a vehicle's wiring.