With the brand-new "Nano & UV Artificial Teeth Cleanser", you can easily clean your smudgy denture. It efficiently clean your artificial teeth or jewelry with nano-silver and latest Japan technology - UV light sterilization. Features Operating easily. Small form factor making it perfect for home use and traveling. Cleaning using High-speed ultrasonic vibration (8000 times per minute) Adopting UV light sterilization and Nano-silver bacteriostasis technology to reach 100% purity without any chemical residues. Power Supply: AA size battery x 3 pcs or switching type AC adapter(Universal from 100~240V)