Stainless Steel Material: The use of stainless steel ensures durability and resistance to corrosion, making it a long-lasting and reliable choice for daily use. Temperature Control Feature: With the ability to control temperature, this mug can maintain the desired warmth of your beverage, ensuring a consistent and enjoyable drinking experience. material Stainless Steel thermal insulation performance 0-6 hours drinkware type MUGS smart type Digital, Electronic power supply Usb Charging Water Flowing Method Direct Drinking