A. Power Function Set, a total of 4 pieces. B. Technical parts, suitable for a variety of power function tools, servo blocks, trains, and electric motors. It is a building kit for power function model sets. C. The contents of the set include: - One power function train motor. - One 9V AAA battery box (the battery box requires 6 AAA batteries, but the batteries are not included). - (Kind reminder: The old and new versions are randomly shipped. They have the same functions but slightly different appearances.) - One infrared receiver. - One infrared speed remote control. D. The battery box requires 6 AAA batteries, and the batteries are not included. E. Warning: Due to small parts, it may not be suitable for children under 3 years old. F. Regarding shipping: All products will be shipped within 3 working days after receiving the payment. In most cases, you may receive the goods within 8 - 12 days. The specific delivery time depends on the actual situation. G. If you have any questions, you can contact us. H. During the shopping process, if you have any questions, you can consult us. We will try to reply to you within 74049 hours. Wish you a pleasant shopping! I. Thank you for your cooperation. We will do our best to satisfy you.