Coined as, “the world’s first smart earring,” Ear-O-Smart is designed for specifically for women to monitor heart rate, activity tracker, and calories burned with superior accuracy, comfort, and style. Ear-O-Smart is also proud to announce its first universal earring backing which offers the same technology as the original Ear-O-Smart earring, but in a backing that fits any post-style earring that women already own. https://youtu.be/BNKdBHqnhtk