Intelligent Stainless Steel Vacuum Flask LED Temperature Display Vacuum Flask Feature: waterproofs rating: IPX7 Insulation technology: tailless vacuum technology Material: 304 stainless steel Product capacity: 500ML The cup lid is equipped with electronics. When your hand touches the cup, the temperature will be displayed. There is no need to charge. The intelligent display life of each cup is about 20,000 times when the temperature is displayed. Instructions: 1. Before using for the first time, the inner tank should be washed clean. 2. Wash the inner tank with a small amount of hot water or ice water first, (do not use steel wire balls to clean it), then pour it out, and refill it with boiled water or ice water to ensure a better heat preservation effect. 3. After each use, please clean and keep dry. 4. It is not advisable to store carbonated beverages in the cup for a long time to extend the life of the Thermoses cup. 5. Don't get close to the heat source, and don't hit it violently. 6. Keep out of the reach of children to avoid burns.[Precautions]: (1). Please pay attention to avoid burns A. Avoid children can get them at will B. Do not tilt the bottle quickly when drinking C. Do not pour excessive amounts of drink to avoid overflow of the drink when the switch is turned on D. Don't use it while driving E. Do not open the switch and cover when the product is tilted or switched, and the cover is aside. Package Content: 1 x smart mug