This app is specially created for 4-Axis aircraft, which allows you to see things in an real awesome way! The camera on the 4-Axis aircraft transmits footage back to your smart device in real time,put your smart device into the VR goggle and see things like you're truly up there flying. NOTE, please read the instruction carefully before you take off. Main function: 1. Real time display of the image from 4-Axis aircraft via WIFI 2. Take photo and video from 4-Axis aircraft via WIFI transmission; 3. Put smart device into the VR goggle and see things like you're truly up there flying. 4. Review the photo and video files.