What's in the box:

Intelligent Parking Assistance System 4 Sensor Buzzer Car LED Display Reverse Backup Alert Indicator Monitor Kits (White)

This system automatically work when reversing, with LED display and left and right obstacle indication, which can help to detect the safe area correctly. It is the best choice for the safe of your car.

Features:
When reversing, the reversing device will automatically begin to detect the obstacles after your car.
LED highlight display provides step by step prompt of the obstacles from left rear, center back and right rear of your car.
Detection range: 0.3 meters to 2.0 meters after the car.
For avoiding collision. It is the best choice for the safe of your car.
There is no impact on the prime electronic system.

Specifications:
Sensor Color: black, white, silvery (optional)
Model: PZ300-W
Uses: car parking sensor, reversing device
Display Type: LED digital display
Voltage: 9-15DCV
Rated Voltage: 12DCV
Sensor Diameter: 22mm / 0.87in
Working Temperature: -30? - 80C
Alarm Volume: 65DB
Install Mode: drill
Respond Cost: 300 - 2000mm / 11.81 * 78.74in
Sensor Angle: x y 60?
Package Size: 270 * 170 * 50mm / 10.63 * 6.69 * 1.97in
Package Weight: 420g / 0.90lb

Package List:
1 * Interconnecting Device
1 * LED Display (with line)
2 * Sticker
1 * English Manual
4 * Sensor (with line)
1 * Power Cable
1 * Hole Saw