1. Ultrasonic Deep Cleaning: The ultrasonic cleaner uses 50KHz high frequency sound waves to penetrate into crevices and grooves, covering 360° to net through dirt and effectively remove particles/dirt from dentures, retainers, mouth guards, orthodontics, braces, whitening trays, night guards, jewelry, etc. without damaging delicate items. 2. & Low Noise: This ultrasonic retainer cleaner shell is made of high quality ABS material, effectively preventing the corrosion of cleaning tablets, cleaning agents and other liquids. The bottom is equipped with four anti-slip rubber, easy to stabilize the ultrasonic cleaner, effectively reduce noise, use more at ease. 3. Easy to use: ultrasonic cleaning machine a key touch control, 3/5/10 minutes choose to cleaning, without constant attention. Ultrasonic cleaner connected to the power on button very simple and convenient to use, the elderly can also be easily used. 4. Large Capacity & Portable: It is enough to clean denture, braces, jewelry and