This is another project of mine. There has not been a lot of time work on electronic projects lately due to work.
I need to open them up and see what I can fit inside. I plan to stuff an FM transmitter and a generic shuffle mp3 player into them. I did some looking around (eBay) and I found a small FM transmitter and a voltage stepper. That way I can run everything off of two AA's.
They are sealed so I will have to dremel an access panel into the back and remove whats inside. The rivits will have to be removed so I can get to the back and attach it to a new collar if needed. Ill used nuts and bolts to reattach them.
When I'm done with both I'll probably try and sell the white one on FurBuy.