... left, right, front and rear videos. 1,Four ways video input, including left, right, front and rear videos.2,360-degree ... files lock function; 17,Abnormal power-off file protection; 18,Wide voltage input 9V-32V, vans apply; 19,Support force shut down and ... single or multi frame playback; 21,Support computer software playback; 22,Support user software upgrade; 23,Support timer recording after stall ...