Wall Hugging Mouse. This entertaining mouse looking, battery powered toy provides hours of entertainment for young children. It powers from One AA battery not included. Designed to peak the interest of young engineering minds, the clear ABS body allows you to view the internal gearing mechanisms for educational purposes. Includes decals for eyes and whiskers. Some assembly required so basic modeling skills strongly recommended. Snap together assembly . Approximately 6 hours of run time. may contain small pieces, so take precautions during assembly and use with young children.