Arduino Tens Sound device - Paid Project

I don't know if this is even possible but I could use help making this Circuit in the link. I'm willing to pay someone. I no longer have the Schematic but I do have pictures and the IDE code. My brother helped me but he's not doing well and did not share a schematic. What it does is create a timed Tens output and controls sound imputed from a MP3 player. Is it possible for someone to figure out this circuit?

ryandewitt.com/diy-bi-modal-device

I Moved this post to a better place

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