After much analysis, we have found that most of the problems of the dash cam are caused by the memory card because the speed and number of erase and write of the memory card cannot meet the requirements. Therefore, the package comes with a free128GB V30 speed memory card,1500 times erase and write, this memory card has been tested many times, specifically for the D90-4CH dash cam, which has 4 FHD cameras. It is more durable than the high-end memory cards on the market, which can make the D90-4CH dash cam more stable, reliable, and work continuously for a long time. We therefore recommend that you use the memory card we provide.

*If you want to use the parking monitor function, please search for B0765683WG on Amazon and purchase our 3A smart ACC hardwire kit separately.

[4 Channel Front and Rear and Inside Dash Cam] The quad FHD 1920*1080P dash cam has a 150-degree super wide-angle lens and a 3-inch LCD screen. It provides sharper videos and images even when traveling at high speeds, and allows you to re-watch important moments. The dash cam can simultaneously record the front and sides of the vehicle, and the two cabin cameras can freely change the recording angles and rotate left and right, allowing you to record in opposite directions as well.

[Built-in GPS and Speed Tracking] The D90-4CH dash camera comes equipped with an integrated GPS that accurately pinpoints the vehicles location, speed (in KMH/MPH), time, and routes on a map in real time. To view the path trajectory that has been taken, install and use the GPS player. The coordinates displayed on the right side of the GPS player help track the precise positions of an accident, which is crucial for roadside assistance and insurance claims.

[Quality Night Vision and Reliable All-Weather Monitoring] The cabin cameras feature an F1.8 aperture and four infrared lights. This provides around-the-clock protection. This ensures clear recordings and superior image performance compared to other dash cams, especially at night. The dash cam also includes the latest, most sensitive night vision image sensor, allowing it to capture stunning images even in pitch-black conditions.

[Loop Recording and Emergency Accident Locks] To ensure indefinite loop recording, the dash cam will automatically erase the oldest unlocked footage when the memory card reaches its maximum storage capacity. In the event of a collision, the D90-4CH dash cams built-in G-sensor will automatically lock the currently recording footage as evidence. The locked files will not be overwritten by Loop Recording.

[Easy Installation without a Battery] Installing and using the D90-4CH dash camera is made easy with the reference images provided in our user manual. The accompanying suction mount can be installed on your windshield in a matter of seconds. Simply add a128GB SD card and connect to the power source. The camera does not include a battery to prevent damage from sun exposure, high temperatures inside the car, or battery malfunction.