Ultrasonic Cleaner | Ultrasonic Retainer Cleaner Machine | USB Rechargeable Ultrasonic Machine | Mouth Guard Cleaner | Night Guard Cleaner | Dentures

**** The Ultrasonic Cleaner for dental appliances, including retainers, mouth guards, and dentures, appears to have garnered a mixed reception among its users. Initially praised for its functionality and value, many customers experienced significant shortcomings after a brief period of use. Reviews indicate that while the product performed well at first, it rapidly failed, ceasing to function after just a couple of months. Users reported issues such as the device stopping after the first charge or becoming completely non-operational a few months post-purchase. Unfortunately, the lack of robust customer service from the seller has exacerbated these challenges, as several customers have attempted to reach out for refunds or replacements without success. Additionally, the closing of the Amazon return window left some users feeling further frustrated, as they felt their experience had soured significantly after the initial positive impression. Overall, while the Ultrasonic Cleaner does fulfill its purpose satisfactorily at first, its durability and the lack of customer support present hurdles that potential buyers should Consider before making a purchase. **