Car Parking Sensors System Parktronics 4pcs Flat Sensors Reverse Backup Radars Sound Buzzer Alarm Adjustable Sound

Features:
Anti-freeze and rain proof.
Distinguishing obstacles around, three colors alarm.
Strong anti-interference techniques.
It is a nice choice for the safe of your car.
Detective distance from 0.3-1.5m.
Dual-core processor, more stable performance.