This is a Christmas present I gave to my child. I opened it once, connected the adapter, and tested the voice function, but it turned out to be different from what they wanted. So, I put it back in the box, and it's been stored in the closet ever since. It runs on batteries, but I'm also including the separately sold adapter. The box is slightly deformed, so please check the photos. For those interested in OmniBot Robi, how about it? Thank you.