Setting the speed:
To set the speed during the red led phase (when you turn on) push and release the button the number of time you want to make faster (1=lowest, 2=mid speed, 3=fastest)
When you have done this the red led will go off then flash the same number of times the button was pressed i.e. 2 flashes twice indicating which speed it is now set to.
Then green led will flash the same number of time if you are using 6aa or the orange led will flash the same number of times if you are using 4aa,the motor will now spin up at the speed set it will then stop and that means the speed is set and you are ready to use
hope this helps