Fangrui Product Details [built-in Wi-fi]the Built-in Hotspot Module Of The Car Dash Cam Allows You To View, Change Settings, Download And Shares Footage Directly From The App Later Opening And Connecting The App, And Does Not Need To Insert The Card Into The Computer [loop Recording G Sensor]this Car Camera Records Footage In A Loop, So You Have To Worry About Deleting Old Recordings To Free Up Space For New . There Is A Built-in G-sensor That Detects Sudden Crashes And Shakes To Lock Footage And Accidental Or Overwriting. [dash Cam Front And Inside]the Front And Inside Lens High-definition Night Vision Parking Monitoring Allows You To Clearly Understand The Conditions Of The Vehicles In Front Of And Behind At Any Time, And Can Clearly See Them When Moving Forward And Reversing. The Camera In The Car Allows You To Understand The Conditions In The Car At Any Time And Record Driving Life. [easy Installation And Easy Operation]this Hd Lens Dash Cam,the Installation And Operation Are Easy, Which Can Help You Drive Easily In