The possible reasons are as follows:


This model is equipped with hardware-level HDR capability, which can greatly optimize the imaging effect in scenarios with strong brightness contrast, such as the following: 1)Entering and exiting tunnels or underground garages during the daytime on a sunny day;
2)Headlights shining directly on the license plate of the vehicle at night;
3)Shadow imaging of objects on the road in areas exposed to strong sunlight.

The parking surveillance cable is an accessory utilized in the dash cam for parking security. It is used for the following functions:
1)Drawing power from the battery of the vehicle in order to maintain the constant power supply to the dash cam after the vehicle engine has been switched off. This allows for the functions of normal operation of parking surveillance and remote surveillance.
2)To prevent the battery from being drained and the car from malfunctioning, the cable cuts off the power supply to the dash cam when the voltage of the battery has decreased to a preset threshold.

This dash cam can support memory cards with storage ranging from 64 GB to 256 GB. The recommended memory card grade is U1/Class 10 or above.

This dash cam model requires a power supply with 5V/1.5A input, and it is recommended to use an official 70mai power supply accessories. If you prefer using a third-party power supply accessory, please make sure to opt for an accessory with power supply specificationsthat meet the requirements and comply with national safety regulations.

Based on the HDR mode realization principle, the amount of frame encoding calculation is equal to 60 fps under the setting of HDR+30 fps. HDR and 60 fps cannot be enabled simultaneously on mainstream dash cam controllers because the processing capability is insufficient.

After the video/photos and other image files have been downloaded from the dash cam to the mobile APP, they are all stored in the "70mai" album in the system album of the mobile phone. You may access and manage these image files in the system album or in the local album of the 70mai APP.

The speed and coordinates watermarks and brand logo watermark on the dash cam screen can be individually disabled. Simply select the “dash cam settings” tab on the device or on your mobile phone to turn off the watermark. However, the date and timestamp cannot be turned off.

Collision detection parking surveillance function supports five sensitivity settings. The difference between each level of sensitivity is in the judgment of collision recognition, the higher the sensitivity setting, the easier to trigger.

With the dash cam's built-in satellite positioning module, the vehicle's current location information can be retrieved in real time, allowing for the following additional safety functions: 1)Watermarking information such as speed, latitude, and longitude on the video screen provides evidence records with a reference.
2)Dash cams record every trip your vehicle takes and summarize that information into a driving route that can be used as a reference for historical trip statistics.

plugged to the computer? Please use a data cable with a data transmission function. The dash cam is equipped with a power cord without data transmission function.