What's in the box:

Car Parking Sensor System Car Reverse Parking Radar System Car Parking Reverse Backup Radar Sound Alert with 4 Sensors (Grey)

Car LED Parking Reverse Backup Radar System with Backlight Display + 4 Sensors Grey

Features:
LED digital display with BiBi sound reminder.
4 sensor system, double CPU and advanced chipset to enhanced coverage and detection.
Be beneficial to prevent dangerous and costly collisions.
Help to provide increased safety for passengers, pedestrians and family members who happen to be around the moving vehicle.
Detect small children and low walls as well.
Anti-freeze and rain proof.
Easy installation and operation.
With a drill head, convenient to drill hole.

Specifications:
Sensor color: dark grey
Rate voltage: DC12V
Operation voltage range: 9-16V
Rate current: 20mA-200mA
Detecting distance: 0-2.5m
Ultrasonic frequency: 40KHz
Control moudle working temperature: -30 - +70 celcius degree
Display working temperature: -20 - +60 celcius degree
Sensor size(H * D): 1.9 * 2.5cm / 0.75 * 0.98in
LED display size: 9.9 * 2 * 2.6cm / 3.9 * 0.79 * 1.02in
Main control box size: 10.5 * 6 * 2.3cm / 4.13 * 2.36 * 0.91in
Display weight: 89g / 3.15oz
Main control box weight: 63g / 2.22oz
Item weight: 355g / 12.52oz

Package includes:
1 * Main Control Box
1 * LCD Display Indicator
4 * Sensors with 2M Line
1 * Hole Saw
1 * Power Cable
2 * Double Side Sticker
1 * User Manual