Made of plastic, HH-621K-2.4G-12V control box with 2.4G remote control for children's electric cars. Press and hold the forward and reverse buttons simultaneously. The indicator light flashes, then the car starts. When the indicator light stops flashing, the connection is successful. To determine compatibility: Open the electric car and compare the existing control box. If the housing matches in size and shape, the part should fit. If modifications are required, verify the label on the receiver. Product Name: Children's Electric Car Controller Note: Due to variations between production batches, labeling and minor interface details may differ slightly. These variations do not affect functionality. Color: As shown in image Material: Plastic Package Contents: 1 x receiver, 1 x remote control Other items shown are not included. Note: Screen settings and lighting conditions may cause slight color differences between the image and the actual product. Measurement tolerance: ±1–3 cm.