Section 24-233. Personal audio devices

(a) No person shall operate or use or
  cause  to be operated or used any personal audio device in such a manner
  as to create an unreasonable noise.
    (b) For the purposes of this section unreasonable noise shall  include
  but shall not be limited to:
    (1)  the  operation  or  use  of  a personal audio device on or in any
  public right-of-way so that sound emanating from such device is  plainly
  audible  to another individual at a distance of 25 feet or more from the
  source.
    (2) the operation or use of a personal audio device from on or  inside
  a  motor  vehicle, whether moving, parked, stopped or standing, on or in
  any public right-of-way so that sound  emanating  from  such  device  is
  plainly audible to another individual outside of such motor vehicle at a
  distance of 25 feet or more from the source.
    (c) Nothing in this section shall be construed to permit the operation
  or  use  of  a  personal  audio device where such operation or use would
  otherwise be prohibited pursuant to section  10-108  or  24-244  of  the
  administrative code.