We need an app for Android to play mp3 when plug in the headphones and plays in background. There is a free app on Google store "Plug In" very similar with what we need, but that one is playing continuously the mp3 even disconnect and reconnect the headphones. We need the app to start from the beginning of mp3 each time we reconnect the headphones. This app will be used for blind people, so will be no chance to tell them to rewind themselves the mp3 or to click to open the app. This should be done automatically once they will connect the headphones. The app will be installed in the tablets with Android operating system.