Battery lasts one day only and it plays horrifically - basically impossible to listen it loudly because it makes a terrible noise

Cause it makes an annoying noise when played

EXCEPT when a piano is playing in the song, for some reason when a piano is playing there is a really annoying buzzing/rattling noise that is created.

Lots of static noise.

The sound is not clear and on high volumes, you can hear a lot of scratchy noises

I'm guessing the battery is worn out maybe, and that it's not providing enough of a current to the phone(s)??