1[Double Lids] A cup of double lids can be switched at will, and there are two drinking methods, which is straight drinking and cup drinking, allowing children to choose by themselves. 2[Heat Preservation] 12 hours of heat preservation, so that children have hot water to drink all day, no need to charge, can be used for a long time. 3[Silicone Straw] Using food grade contact silicone straw, high temperature resistance, anti pull, safe and harmles, so you can use it with confidence. 4[Temperature Display] With intelligent temperature display, one touch display, you can see the temperature every moment. 5[Waterproof Cup Cover] With portable waterproof cup cover, which is wear resistant, adjustable strap length, widely used in outdoor, travel, car, office, etc.