My 9918 plays music

[RCcarnut]

When I drive my bandit really slow, with my lehner and 9918 controller, it plays what sounds like music lol. I know there may be warning beeps(although I haven't heard one yet) but these are tones that come out of the controller at different pitches almost sounding like a song. Anyone ever heard this?

I showed my wife the other day just to make sure I wasn't crazy. She asked why it did that? I laughed and told her I have no clue. So I figured I'd ask here.:cool:

It was also the first time she saw me really drive it and she dropped her jaw when I flew across my yard with it faster than my nitro 2.5 rustler.