E-PRANCE New FHD 1080P 30FPS GT680W Car Dashboard Camera + 140 Degree Lens + G-Sensor + Car Plate Stamp + LED Night Vision + Advanced WDR + MOV + 32GB Memory Card G-sensor automatic trigger for file protection: When an impact, emergency brake occurred or the car tilted, it will protect the previous, present and next video files automatically. Through this function the important files wont be removed by loop recording. Motion Detection: With the first motion detection feature, it starts recording automatically itself if there is motion in the video without pressing any button. Loop Recording: When the storage space is full, it can automatically cover the earlier segment. Car Stamp: You can sign your name, input vehicle number or your ID at your pleasure. It is not only funny but being a credible term of the video. High-definition video recording (H.264 + 1080P): High Definition Video Camcorder is equipped with high-resolution (1920 x 1080 @ 30FPS) video recording feature, and uses the most advanced H.264 video compression technology to provide much longer recording time.