The FrontZone parking sensor system by Rostra, aids you in parking your vehicle by sensing objects in the path of the front of your vehicle as you park. Four flush mount sensors in the front bumper of the vehicle detect objects in your path and alerts you to them. Small display mount on headliner above rear view mirror and give audible and visual warnings. When an object is detected LED bar tells you which side of the vehicle it is on and a digital readout tells you how many inches away. Audible beep also alerts you to objects, and the unit beeps faster as you get closer to the object. Detects up to 3 feet in front of the vehicle. Helps prevent costly body repairs by helping drivers make safer parking decisions. Works on most vehicles. Price includes installation.