DF768 player power query

Hi I am a sculptor wishing to embed sound into my work. A friend suggested I use a DFRO 768 player, I have also bought an Uno Arduino starter kit. My first question is can I create a set up from the DF player that will play from mains power. The piece will be in a gallery for a month and so running from batteries wont be practical, as  I expect they will run out. Any help gratefully appreciated.

Thanks

Tess