Feature: - Smart Temperature LED Display:The finger slides through the cover and the LED will show the internal temperature. No need to pass the mouth to test the temperature and avoid burns. - Vacuum insulation and durability:The smart kettle is made of high quality food grade stainless steel, dustproof, waterproof and rust proof. Good sealing, no sweating or hot to the touch, easy to clean. - Long Time Keep Warm & Cold:Nearly 24 hours to keep water warm and cold! This smart water cup suitable for both winter and summer, broke the traditional style of Vacuum cup! - Versatile and Large Capacity: Healthier than plastic or carafe. Large capacity to meet your daily hydration needs. You can also store ice, coffee, milk, beer, drinks, etc. It is also the best birthday or holiday gift for family or friends. - A Variety of Occasions:Energy saving and environmental protection! Suitable for easy travel, ideal for outdoor sports, office, beach, school, picnic, yoga, hiking, cycling, running, fitness and more for all occasions of cold or hot drinks.