First Health Self Cleaning Insulated Stainless-Steel UV Water Bottle, 18 oz Rechargeable, Reusable, UV Water Sanitizer, Kills 99.9% of Germs, Bacteria, Keeps Hot for 12 Hours or Cold for 24 Hours

Built into the cap of this vacuum-sealed container is a rechargeable UV-C sanitizer, perfect for handheld germ-killing wherever you and your beverage end up Use it to kill potential bacteria in any liquid inside in just 3 minutes, or use the waterproof cap on its own for sanitizing power in the palm of your hand Keep up to 18 oz (532 ml) of liquids hot for up to 12 hours and cold for up to 24 hours Provides up to 500,000 uses and is IPX6 Waterproof The FH7056 Sanitizer Water Bottle comes with a metal case, which includes a USB Charging Cable