1.Digital LCD showing obstacle distance. 2.VFD1-Y4 reporting the distance with the voice. 3.VFD-Y4 alarm by chord music. 4.Colorized LCD screen. 5.The simulative vehicle. 6.2í½8 sensors are available. 7. All kinds of sensor colors and styles are available. 8.High quality and easy to install. 20 pcs/ctn CBM of one carton is 0.08 weight of one carton is 18 KGS