Product Description: brand new high quality Made of high quality material, durable 2.4G Remote Control Receiver 12V Bluetooth RC Kids Bicycle Controller Bluetooth Remote Control Instructions 1. The fir st use (or battery replacement) needs to match the frequency Step 1. Install two AAA 1.5V batteries (pay attention to the positive and negative polarity in the battery compartment), and finally close the battery cover. The indicator light flashes three times to indicate that the battery is installed correctly. Step 2. Press and hold the frequency button (select car) for about 2 seconds, and the indicator light will flash Step 3. Turn on the power of the car, and the indicator light goes out The fourth step, if the frequency binding is not successful (the indicator light does not go out), please turn off the power, and repeat the second and third steps. Model (optional): Blue RC White RC 2PIN Receiver 5PIN A Receiver 5PIN B Receiver 3PIN Receiver 40A 5P A Receiver 40A 5P B Receiver 40A 7P Receiver 2PIN Full set 5PIN A Full set 5PIN B Full set 3PIN Full set 40A 5P A Full set 40A 5P B Full set 40A 7P Full set 24V 5P Full set Package includes: (optional) Listing 1: 1 * remote control Listing 2: 1 * Receiver Listing 3: 1 * remote control +1 * receiver Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight manual measurement deviation for the data. Made of high quality material,durable and practical to use. Perfect price-performance ratio, save you more money. The products is manufactured after strict screening, which is trustworthy. We will ship it ASAP,when you place the order. If you have any questions,please feel free to contact us, we will solve it for you immediately.