SRX7U , 4 camera system for truck and RV

This 4 channel camera system provides a complete view of your front, sides and rear of your vehicle.  Recording all 4 channels on a pair of micro SD card.  All cameras are fully waterproof (IP67) rear and side cameras with IR night vision Large 7" display to show all your camera views at the same time.   SpecificationScreen: 7.0 inch, 4:3, TFT LCD, 800*480Emergency recording:  3-axis G-sensorFront Camera: 1080p, waterproof, 120° wide angle, 6-layer all-glass (6G)Rear Camera: VGA 640*480, waterproof, 120° wide angle, 6-layer all-glass (6G), IR LED+IR CUTL、R camera: VGA 640*480, waterproof, 120° wide angle, 6-layer all-glass (6G), IR LED+IR CUTCamera Extension Cable: 3 meter for front; 15 meters for rear; 6 meters for left and rightVideo Format: AVI, H.264Loop Recording:  seamless recording 1/3/5 minutesIR remote control: IncludeSpeaker: Built in(Power: 8Ω/0.5W)Microphone: Built in high sensitivity microphoneMemory Card:  2 MicroSD cards, maximum  128GB   (Class 10 or above, not include)Power Supply: 9-28V input; 5V2A output dedicated step-down converter, which built in super capacitor will save the last file safelyTemperature: -10~+65 °CHumidity: 4%~90% RH