[TR] muffler supplier........randall??

[Randall]

> Negative noise?  How does that work?  Does it suck noise out 
> of the environment to make things quieter?  If it did, how 
> would find it at all?

I don't know, but I sure love my noise-cancelling earphones.  The difference
when you flip the switch for the noise-cancelling feature is really
remarkable.

But of course I don't use them while driving, that would be illegal.

-- Randall