Playr Audibly Android
Audibly is an offline music player with synchronizing, wireless, surround sound for iOS and Android devices. To add music, copy music files, like m4a, wav, and mp3, through the built-in file manager. Then Audibly will automatically sort through all the files and organize a new music library.
Audibly has an extremely accurate syncing engine, making a crystal clear listening experience.
Also, you can connect up to 8 (possibly more…) iOS devices over WiFi and use them as wireless, surround sound speakers. Audibly has a system to keep the devices’ music in sync. Place all the iOS devices around a large room, turn up the volume, and enjoy the music.