1. Before using, please format sd card on your camera first. Samsung Evo 32GB card is recommended (not included). Note: Samsung Micro SD cards would only be made in either Korea or the Philippians. Please be sure to buy a genuine samsung evo card. Please DON'T use Sandisk and Transcend Card. If you are using a 64GB card, please format it to FAT32 before use. Please insert the card into the camera, (if it says 'please insert TF card' or 'sd card error' here, please press the recording button(OK button) and press M button to access into the menu, go 'system setup' and choose 'format'. Then the card will work well on the camera.
2. When you use this dash cam, please note that night vision effects works well with front cam, if you want to record car inside in the evening, we suggest that you turn on the lights inside the car.
3. If windshield mounts are illegal in your state, please buy an Adhesive Mounting Disk for adhering to dashboards.
4. Since the dash cam's battery is very small, only 250mah to keep setting, please always keep it plug in.
5. Optional GPS for you to track the driving route, location and speed in either KM/H or MP/H. To use gps function, please buy an extra N2 gps mount to use it (Asin: B07CG9RSVS ).