Elegant new design rainy-proof VFD parking sensor system, 1.Stage-by-stage sound alarm 2, Sound switch 4, anti-freezing,rainy Elegant new design rainy-proof VFD parking sensor system 1, Elegant new design VFD colorful display 2, Stage-by-stage sound alarm 3, sound on and off switch 4, optional sensor style and color 5, anti-freezing, rainy-proof design, work well under extreme cold weather 6, 4 ...