User blog comment:Omega natsu2/Fairy Tail Episode 212: Juvia vs. Aries: Clash in the Desert!, Review./@comment-108.5.101.229-20141216215230

Ophi's creators failed when they made her stethoscope spell. She yelled into the earpiece of the stethoscope and it somehow magnified the sound out the chest piece, which was on Natsu's, Wendy's, Carla's, and Happy's. Supposed to be the other way around.