The sound amplifier license may not be transferred, sold or set over in any form to any person, firm or corporation whatsoever. Such license shall be effective only for the location stated in the licensee's application. Such license shall be granted only for use between the hours of nine a.m. to nine p.m., Monday through Saturday and twelve noon to nine p.m. on Sunday. No licensee shall operate at a volume or in a manner so as to be offensive to the general public. In addition, no licensee shall cause or permit to be emitted from any sound device any lewd, obscene or indecent language or sound or any false representation of any matter or to advertise any product or service, the sale of which is prohibited by law. (Prior code § 11-503)