Adashine Ambarella A7LA50 Chip Dashboard  DVR Mini 0805 Camera with 8 GB Card LENS & CHIP: 135 Degree Wide Viewing Angle, Capture a Wider View of the Roads Efficiently,OV4689 Imaging Sensor. First-Class Configuration with World Leading Ambarella A7 Chip. Motion Detect & G-Sensor: Making it very easy to set up this dash cam as a surveillance mechanism for your car in the event of vandalism or theft. Now every time someone approaches your car, the DVR will capture the suspect face. When an impact or emergency brake occurred, it will protect the old and new video files automatically, for this function, the important files won't be removed by loop recording.But motion detection can not work after power off. Loop Recording: When the storage space is full, it can cover the earlier segment automatically. Hot button function: Press the UP key then current file will be muted,Press the DOWN key then current file will be saved and locked. Press UP key hold 3s you can do something setting.Press OK key hold 3s you can take a picture.Press DOWN key hold 3s and into movie reviewing,and hold 3s you can review the pictures. Note: Please Insert the card(8G included) into the dash cam and setting date and time before using. Format the card for the first time please,Upgraded camera built-in cooling fin, the heat will be given out by HDMI port, so you may feel the hot on the HDMI, but that is normal, no damage to the camera.The normal operating temperature of the dash camera is 0-40C(32F-104F)high than these may cause shuts off. With GPS ,click this link:http://www.amazon.com/dp/B01EJBW1H0 please.