Install the ManagerPlayer.apk located at /Builds.
Connect to the same Wi-Fi network that the User Player is connected to.
Select a video from the drop-down list on the first screen the app has started. The video file must be in the internal storage of the phone.
Wait for the User Player to load and click the Start button only when "READY" is written on the user screen.
Install the UserPlayer.apk located at /Builds.
Connect to the same Wi-Fi network that the Manager Player is connected to.
Start the app and wait for the Manager Player to start the video. The video file must be in the internal storage of the phone and must have the same name as the video file of the other phone.