Drink magnetized water for a long term can help nutrition absorption, improve gastrointestinal function, promote the body metabolism, improve immunity Good choice for travel without worrying about the leaking problem. And magnetized stirrer stir set your hand for free and make the cleaning easier Stainless steel insulation design, great for travelling or when you're on-the-go, it keeps the water temperature within 3-4 hours. It is durable and has long service time Without pressing the button all the time, you just need to install two AAA batteries into the base of the mug, then add water and powder into coffee mug, pressing the switch on the handle and the stirrer will start working.(Battery Not Included) A best gift for your families, friends and colleagues who love coffee, hot chocolate, protein powder or other beverages