This baby carrier cover with a fan provides excellent ventilation, making it comfortable to use even on hot days. Used only a few times and is in very good condition. Functionality has been confirmed, and it has been home-cleaned. Batteries are included. - Brand: BabyHopper - Model Name: Air-Conditioned Baby Carrier Cover - Color: Blue - Features: With fan, breathable, cooling function - Size: Free Size Thank you for looking.