ok this is to set up the speedo to the transmiter.
turn transmiter on then speedo
press the set up button [keep it in]
then the led will flash then live the transmiter in neutral and push the set up button.
then the motor should bleep pull the throttle to full power on the transmiter and while doing so push the setup button again.
then the bleeping should stop then pull the transmitter to full brakes and press setup button.
then it should be set up to transmitter.