The MP3 Player - MP4 Player & Video Player HD app is an amazing app for playing and managing your audio files on Android. The app is very simple to use and works perfectly offline. 

The application has an interface that is very simple and easy to understand. You can search by title, artist, genre, album, or folder. You can also search by type, such as song, sound, or music. You can even find your favorite music by searching by the name of the artist or the song.

When you find a file you want to play, just tap on it and it will start playing. You can play the file in the background or you can play it in the foreground. The app allows you to pause, stop, and reset the audio file. You can also seek to the position you want in the audio file.