Features: When car engine starts, the system will activate the car monitor and the all the camera around one by one to check the view around for 10 seconds, then turn off. When you pull the reverse gear (Left/Right turning no triggered), the system will activate the monitor and rear view camera till the reverse gear back, then switches to front view camera for 10 seconds then shut off. The system start with front view mode as default.Front view controlled by switch(included) .Press the control switch for 2 seconds, car monitor and car front view camera will be working all the-time, if no other trigger working. And then you could shut off the front view video by re-press the control switch for 2 seconds. Press the control switch less than 1 second to enter Side View Mode.When you turn on the turning switch, this system will activate Monitor and Side view camera (Left/Right side view camera is controlled by Left/Right steering lamp). The monitor and camera will turn off after 1.5 seconds when steer turning is finished.Press the control switch less than 1 second again to enter Front View Mode. Video output: Two videos output, one for car monitor, the other for car DVR. Specifications: Material: Plastic Size:Approx.7.6x5x2.5cm/2.99x1.96x0.98inch Color:Black Adjustment angle: 170. Resolution: 720x480dpi Seismic-strength: strong Scanning-frequency: high Video signal: strong Mirror image: mirror-image Power supply current: 50mA Power supply voltage: 9~15V Power: 1W Working temperature:-20 ~ 80 Dynamic range: > 72dB Signal to noise ratio: > 48dB Minimum illumination: 0.1lux Angle of view: 170 degrees Note: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Host 4x Camera(Front, Rear, Left, Right) 4x Camera Extension Cord