How to make sure whether the control box fits your car?<br> Open your broken electric ride on car and check the control box.<br> If the appearance of the control box is the same, this part should fit your car.<br> Ⅰ. The first use (or replace the battery) need to matching frequency Step 1. Install two AAA 1.5V batteries, (note the positive and negative polarity inside the battery chamber), and finally close the battery cover, indicator will flash three times indicates that the battery is installed correctly. <br>Step 2. Press and hold the frequency key(car select) for about 2 seconds and the indicator will flash <br>Step 3. Turn on the power supply of the car and the indicator will turn off<br> Step 4. If the matching frequency is unsuccessful (indicator not turn off), please turn off the power supply and repeat steps 2 and 3. <br>Specifications:<br> - Brand: WEELYE <br> - Model Number: RX30<br> - Voltage: 24V