Stainless Steel Material: The use of stainless steel material ensures durability and resistance to corrosion, making it a reliable choice for long-term use. UV LED Self Cleaning: The UV LED self-cleaning feature sterilizes the bottle, providing a hygienic drinking experience and reducing the need for manual cleaning. Double Wall Insulation: Double wall insulation helps maintain the temperature of the beverage, keeping drinks hot or cold for up to 12 hours, which is ideal for various settings. material Stainless Steel thermal insulation performance 6-12 Hours drinkware type MUGS smart type Digital, Electronic, Bluetooth, Temperature Display, Sensor power supply Usb Charging Water Flowing Method Direct Drinking