3-Inch Air Horn
These tiny 3-inch air horns put big sound in the palm of your hand. And also the breath of your lungs. Operating off of human rather than compressed air, the 3-inch barrels require you to channel your inner boogie-woogie bugle boys and girls to create a "blaring and lucid sound" that will grab people's attention during an emergency, a boat trip, a sporting event, or an awesome audio prank.
Even better, one 3-inch air horn owner describes the noise this little whistle with a big voice makes as "a long loud fart." Ahhh, better get out my Pulmonica and start training to improve my lung capacity.
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