you can add your favorite song in favorite list using this player, if u want to remove favorite song then delete option is also availible in this app.
XS Player is also capale for change the eco of sound using equlizer option.
If you want listen again and again your favorite song the just click on repeat option else click on shuffle for play all list of your smart phone.
> All extension player
> Favorite Option
> Repeat Option
> Shuffle Option
> Sound Profile