The first use (or when replacing the battery) requires matching the frequency. The product is applied to specific children's riding toys. Please ensure the purchased part has the same appearance. Step 1: Install two AAA 1.5V batteries (not included), paying attention to the positive and negative polarity inside the battery chamber, and then close the battery cover. The indicator will flash three times to indicate that the battery is installed correctly. Step 2: Press and hold the frequency key (car select) for about 2 seconds, and the indicator will flash. Step 3: Turn on the power supply of the car and the indicator will turn off. Step 4: If the frequency matching is unsuccessful (indicator does not turn off), please turn off the power supply and repeat steps 2 and 3. Type: A Control Colour: White & Blue Material: Plastic Package Contents: 1 * Children's Electric Car Remote Control Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. The measurement allows an error of +/- 1-3cm.