HD LCD touch screen for prompt real-time water temperature display.Let you drink the water that is most suitable for temperature anytime, anywhere. Made of 304 stainless steel, double layer vacuum design, safe, BPA(Industrial Chemical)-free and eco-friendly, no smell and easy to clean. It can keep hot or cold water for 12-24 hours. This vacuum flask water bottle is also a good container for coffee, Juice, milk, beer, drinks and daily hydration.