Packaging content2 Power Functions M Motors #8883 Power Functions Battery Box #8881Power Functions IR Remote #8885 Power Functions IR Receiver #8884 How does it work?First you need to download the specified APP on your phone, then connect each component according to the instructions, and finally connect the motor kit to your phone so that you can control the operation of the motor kit with your phone. Superb compatibilityOur motor set is compatible with most types of block cars on the market! Safety and Learning for kidsMade of high-quality ABS plastic materials.By assembling building blocks, children can exercise their hand-brain coordination ability, stimulate their imagination, and make them enjoy the joy of doing things. Due to manual measurement, please allow for a slight error. Please make sure you don't mind before bidding. Colors may vary depending on the monitor, please understand. Attention: Hello, please pay attention to your shipping address when purchasing products. If your shipping information (such as name, street, house number, doorbell/email without name, etc.) is incorrect, the order will not be delivered correctly