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. 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. Review the photo and video files.