KUNPHY Ultrasonic Retainer Cleaner, IPX7 Water-Proof Denture Cleaner Machine, Portable Dental Cleaning Pod for Deep Cleaning Mouth Guard, Aligner, Braces, Jewelry, Matte BlackSuper Water Proof Design: This matte black retainer cleaner machine is made of multiple water proof materials to protect internal components from water damage and prevent short circuits, passed a high level IPX7 test, ensuring you use it safer even in wet conditions Advanced Cleaning Technology: The mouth guard cleaner's 48kHz high frequency vibrations technology create millions of cleaning micro bubbles to deep clean retainers, aligners, and