Setup: 1. Remove the Cookie Monster plush from its packaging. 2. Locate the battery compartment, usually on the back or bottom, often secured with a small screw. 3. Unscrew the cover and insert the two AAA batteries, ensuring correct polarity (+/-). The batteries are included, but you might need to remove a plastic pull tab to activate them. 4. Securely close the battery compartment. 5. Press Cookie Monster's belly to activate sounds and motion. Compatibility: This product is a standalone interactive plush toy and does not require compatibility with other devices or systems. It is designed for children aged 18 months and up. Care: - Cleaning: The Nom Nom Cookie Monster should be surface cleaned only. Use a damp cloth with mild soap to gently wipe soiled areas. Do not submerge the toy in water or machine wash, as this can damage the electronic components. Allow to air dry completely. - Battery Replacement: When sounds become faint or motion stops, it's time to replace the AAA batteries. Always use new batteries and dispose of old ones responsibly.