I received this as a hand-me-down. I believe it was purchased about 10 years ago. Operation has been confirmed. Batteries are included. *Please check the following: ① The non-woven fabric on the back of the seat is torn due to aging. There is no problem with normal use. ② The rainbow sticker in photo 11 is peeling off. I have wiped and disinfected all parts that can be disinfected with alcohol. I will ship it by placing it directly in the box and attaching the shipping label to the box. As it was purchased a long time ago, there is overall aging, and it is not a pristine product. Please understand this before purchasing.