Features:
1) Made of ultrasonic electric circuit, ultrasonic frequentcy tracks automatically
2) Fashion design, perfect for home use and other medicament and chemical use
3) Applications:
A) Jewelry and watches
B) Necklaces, earrings, rings, bracelets, coins, watches straps and bands
C) Eye care
D) Glasses, sunglasses, contact lens accessories
E) Daily personal care
F) Dentures, combs, toothbrushes, tableware