TheQXNY car reversing radar system is composed of 4 ultrasonic sensors, adigital control box and an LCD display, making it easier to park any vehicle. Itautomatically detects the distance between the car and the obstacle behind itthrough a sensor installed on the rear bumper of the car. It helps avoid dangerousand costly collisions that can easily happen behind the steering wheel.Features:1: With a voice switch button, you can switch the real voice, beep or mute.2: There are 4 light bars, which represent the data of each sensor respectively, sothat the driver can know the position of the obstacle.3: The sensor adopts a large diameter, which can effectively prevent invalidalarms.4: Blue background light makes viewing data more comfortable and does not affectthe driver's sight.5: The controller box adopts a flip type to ensure that each wire is in firmcontact. Thereare 4 light bars, which represent the data of each sensor respectively, sothat the driver can know the position of the obstacle. Thecontroller box adopts a flip type to ensure that each wireis in firm contact. Witha voice switch button, you can switch the real voice, beep or mute. Thesensor adopts a large diameter, which can effectively prevent invalidalarms. Product List1 LCD monitor X12 main box X13 Sensor X44 stickers X15 hole drill X16 User Manual X17 power cord X1 Specifications:Front sensor detection range: 0.3M~1.2M RatedVoltage: 12V DCRated Current: 100mA - 300mAUltrasonic Frequency:40KHzOperating temperature of control module: -30 - 80 degrees CelsiusDisplay operating temperature: -20 - 70 degrees CelsiusSensor Diameter:22mmAlarm sound: human voice, beep or muteDigital LCD display(numbers and lights). Helps provide increased safety for paengers, pedestriansand family members who happen to be around moving vehicles