High CompatibilityThis wireless remote control works for Vantrue E1, E2, E3, N4 Pro, N5 dash cam. It is not compatible wit other Vantrue dash cam. Easy installationCompact design(size 1.18*0.39*1.49inch) with 3M adhesive on the back. You can stick it to a flat surface on your dashboard, the steer wheel, console, or elsewhere which is convenient for you. The small black body keeps the original appearance inside your car. Easy to useIt allows you to lock emergency moment or beautiful scenery without taking an eye off, which makes driving much safer. Just one press to turn off the audio to prevent possible ramifications caused by strict laws in certain states in North America, is easy and convenient. Simple WiFi Pairing& Control DistanceThe remote control can automatically connect to your Vantrue dash cam via WiFi in split seconds and trigger it even if it is 9.8ft away, which lets you capture the important moment or video quickly to avoid possible disputes when you are driving