high quality All Weelye Kids Electric Toy Car Remote Control and Receiver 2.4G Bluetooth Transmitter Bluetooth remote control instructions: 1. For first use or after battery replacement, frequency matching is required. Step 1: Install two AAA 1.5V batteries (pay attention to correct polarity), then close the battery cover. The indicator light will flash three times, indicating proper battery installation. Step 2: Press and hold the frequency key (car selection) for about 2 seconds until the indicator light flashes. Step 3: Turn on the car’s power; the indicator light will turn off. Step 4: If frequency matching fails (indicator light remains on), turn off the power and repeat steps 2 and 3. How to choose remote control and receiver: 1. The remote controls have identical appearance and are universal. 2. On the receiver, there is a label marked RX…; select the matching model. 3. Note that models A and B have different interfaces. Note: If your remote or receiver has FCC markings, choose the FCC-compatible remote. Available options: Weelye RC, Weelye red RC, FCC RC, FCC red RC, Receiver RX30 24V, RX18 12V A, RX18 12V B, RX19 12V, RX13 12V, RX11 12V, RX22 12V, RX37 12V, RX42 12V, RX23 12V, RX7 12V, RX8 6V A, RX47 12V FCC full set, RX30 24V full set, RX18 12V A full set, RX18 12V B full set, RX19 12V full set, RX13 12V full set, RX11 12V full set, RX22 12V full set, RX37 12V full set, RX42 12V full set, RX23 12V full set, RX7 12V full set, RX8 6V A full set Package Included (optional): Option 1: 1 x Remote Control Option 2: 1 x Receiver Option 3: 1 x Remote Control + 1 x Receiver Note: 1. The actual color of the item may vary slightly from the images shown due to factors such as monitor brightness and lighting conditions. 2. Please allow slight variation in manual measurements.