The court case mentioned above is exactly the court case that has ended with a decree being issued through the Michigan Department of Corrections for providing female inmates the access to the programming which has previously been allowed only to the male inmates. And this happened in 1999, and some big names were part of the jurisdiction. Its a very popular case definitely.
Explanation: Cause they only output sound, and are devices, further more they are not used to output images, like how could speakers output images using sound? They can't.