Description: Introducing BackZone Pro (250-1903-BZPRO), Rostra’s latest innovation in vehicle parking assistance systems. Developed specifically for passenger cars & SUV's and designed around the reliable components that customers have come to expect from the BackZone name, BackZone Pro advances the usability of the product line by easing installation and providing options for audio-visual or audible-only object detection alerts through the included dashboard or visor mountable display or a standalone buzzer Features: Drilling template for accurately aligning sensors to bumper Four flush-mount ultrasonic sensors with paintable bezel (sensor lead wires are 17.5" long) Four rubber insulator sensor sleeves for use on steel bumpers BackZone Pro control module with advanced firmware Dashboard/Visor audio-visual display (options for Off, Visual only, or Visual + Audible alert) Standalone buzzer with 19’ extension harness 21.5 mm hole saw for use with sensor-only installation 24.5 mm hole saw for use with rubber insulator installation Two-wire harness for making power and ground connections Two quick splice connectors for use on power and ground wires Cable ties for securing extension harness to vehicle body Four 6-degree angled sensor bezels for angled bumper covers Four 12-degree angled sensor bezels for angled bumper covers 3M VHB mounting tape to secure control module & the dashboard display in place