The furby uses 4 AA batteries to power it. I tested the furby and it does a variety of things like play games, dance, and sing songs. I would recommend viewing the 2005 furby manual (found on the internet) to use the different prompts for it. The battery terminals look good. I do not ship electronics with batteries. The battery compartment is between the feet. I wonder if the cover is the original as it looks like a different color. The mouth is made of a rubbery material. This material has damaged with time. There are some tears and the bottom piece is partially missing. One of the feet (the left foot from furby's pov) had a broken mount. I found a 3D printed version and I replaced the broken part. I also replaced the screws. He didn't seem to have a problem with it when he danced. There are some marks on the feet.