Anti Fog Glass.Low Illumination Level, Good In Day Time And It Can Work At Night Or Dark Environment Within 3 Meters.Cmos Imaging Sensor.Support Ntsc Video System.High Grade Of Waterproofing: Ip66.High-Definition And 150 Degree Wide Viewing Angle.Applicable To Variety Of Vehicles: Car, Truck, Rv, Etc.Easy To Install.Its Simple And Modest Design And Small Size Won'T Draw Any Attention.It Helps To Avoid Incidents And Accidents Abrasion Well.