This is a listing for the SONY AIBO ERS-111 body only. I was storing it for repair or parts, but I no longer need it, so I am listing it. Operation has not been confirmed. There is no gear sound in some joints. There is also an unusual noise in places where there is gear sound, and it is not smooth. This product is a junk item and cannot be returned. If you have any questions, please do not hesitate to ask before purchasing, no matter how small. *Body only Thank you.