Cencalo retainer cleaner machine uses 42kHz ultrasonic sweeping frequency and U-V LEDs to help remove particles and stains from dental appliances and jewelry. It includes one-touch control with a digital timer, offering 180-second quick cleaning and 360-second deep cleaning modes. The 180ml pod is suitable for retainers, aligners, mouth guards, whitening trays, toothbrush heads, nasal pillows, shaver heads, jewelry, and rings. Built with an ABS shell and a 304 stainless steel tank, it is designed for home or travel use. Avoid running the machine for more than 3 cycles continuously to prevent overheating.