Remote control pairing method: 1. After turning on the speed controller, press the button for 3 seconds and the blue pairing light will turn on before releasing; 2. Press any button on the remote control within 5 seconds to successfully perform pairing; 3. Press for about 10 seconds or more (the LED flashes) to clear the pairing data. Due to different batches of products, there may be slight differences in appearance, which will not affect the use., Weight: 0.30644254418 Pounds, Manufacturer: Rtxbvg