You are viewing a single comment's thread from:RE: SmartClean - Eyewear Ultrasonic Cleaner For Home-use and TravelingView the full contextmobi72 (67)in #steemhunt • 7 years ago (edited)Pros: Simple and elegant design. Generate bubbles by producing 45 KHz ultrasonic waves to clean harmful bacteria & dirty materials. Fast cleaning time. Auto switch off. Affordable price. Cons: Found no disadvantage.