2.4G Remote Control Toy Car Accessories For initial use or after replacing the battery, frequency matching is required. Compatible with children's electric ride-on toy cars. To connect: Press and hold the forward and reverse buttons simultaneously until the indicator light flashes. Turn on the car; when the light stops flashing, the connection is successful. Once the car power is turned on, the remote control indicator light will turn off, indicating a successful connection. Release the buttons to begin using the remote control. Specifications: Material: Plastic Remote Controller Size: 15 x 8.5 x 2.5 cm / 5.91 x 3.35 x 0.98 inches 1816 Receiver Size: 7.5 x 3 x 8 cm / 2.95 x 1.18 x 3.15 inches Updated Remote Size: 14 x 8 x 2.5 cm / 5.51 x 3.15 x 0.98 inches JR1816 Receiver Size: 7.6 x 8 x 3 cm / 2.99 x 3.15 x 1.18 inches Red Chip Receiver 12V Size: 9 x 8 x 3 cm / 3.54 x 3.15 x 1.18 inches Package Includes: Optional Remote Controller or 12V Receiver Note: This product is designed for specific children's ride-on toys. Please verify that the purchased item matches the appearance and model of your existing parts. Requires two AAA batteries (not included).