... , -Water-resistant service connectors, Auto Parking Aid SystemFeatures:-Digital sensor design,-Water-resistant service connectors,-Color Display indicates obstacle distances ... ,-Max Detect Range: 1.5m/Custom-made,-Transmitting Frequency: 40kHZ,-Buzzer Sound Pressure Level: >80dB,-Detect Angle: Horizontal 120°, Vertical ... Audio Warning:5 status High quality and reasonable price auto parking aid system