Our Deluxe Version of the Inflatable Ostrich Dress Costume package includes Instruction Sheet, Air Pump, and Explorer's Hat. Air Pump Requires Portable Power Bank or 4 AA Batteries. (Batteries not Included) Perfect for Halloween Dress-ups, Halloween Costume Parties, and Halloween Night Events. Use the Pocket Located Inside the Costume¡¯s Legs to Safely Store the Battery Pack. DO NOT put the Battery Pack in Your Own Pocket Otherwise, It Gets Overheated. Adjust the Direction of the Fan and Tighten the Drawstrings for the Best Inflating Performance.