It's called the Ontenna. It looks like a simple hair clip that lights up, but it actually is a powerful sensor that translates a wide variety of sounds into vibrations and pulsing lights, 3Dprint.com reports.
"Different types of sounds are translated into different types of vibrations, so Ontenna actually allows the wearer to experience sound, albeit in a completely different way than the hearing do. The clip picks up sounds between 30 decibels up to 90 decibels and translates them into 256 different variations of vibrations and light patterns where the rhythm, pattern and the loudness can all be conveyed to the wearer."
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