One of the most pleasing wonders of a flying disc is how it silently glides through the air.
The discs in this category are the exception: they were intentionally designed to announce their presence through buzzes, whirs, whistles, or recorded sounds. Many require a battery or two to activate the sound producing mechanism, others are simple air whistles.
(Rare exceptions like the Wham-O Super Pro or the Evel Knevel Fling-A-Ma-Bob do make unintentional distinctive whistles or buzzes when thrown hard.)
Think this is a cool category? Hear! Hear!
Photo copyrights belong to their respective contributors, disc design copyrights belong to their designers