This weatherproof color camera has built-in infrared illuminators for increased light sensitivity and an integrated microphone so you can hear as well as see what is behind your vehicle. Comes with a 3 year warranty. Integrated auto iris and water resistant housingBuilt-in microphone so people near the vehicle can communicate directly with youAutomatic sensors allow for optimum image quality in low light conditions SpecificationsImage Sensor: 1/3 inch interline transfer CCDSignal Format: NTSCLens Focal Length: 2.5 mmSynchronization: InternalHorizontal Resolution: 480 TV lines (color)Minimul Illumination: 0 LuxSignal-to-Noise Ratio: >50 dBPower Requirement: 12 VDCOperating Temperature: -22? F to 122? FDimensions (w x h x d): 2.7 inches X 1.7 inches X 2.0 inchesWarranty: 3 Year