WATERPROOF LED DISPLAY: Waterproof LED screen that can be completely submerged in water. Stylish mirror, easy to understand the internal liquid temperature by touching the LED screen. The 360 degree rotation doesn't have to worry about water leaking and the seal is good. Vacation for friends, family, kids, sons and daughters. LONG-LASTING KEEP WARMTH AND COLD: Our products can keep the heat of liquid above 42 C for up to 6 hours and 10 C up to 5 hours. vacation for friends, family , children, sons and daughters. SAFE, HEALTHY AND PORTABLE: The liner of the 450ML premium vacuum bottle is made of food grade 304 stainlsteel, and the outer shell is of high grade 201 stainlsteel. Tough, corrosion resistant, safe and healthy. It has been approved by the FDA to meet all of your drinking needs. 100% BPA Free. Holidays for Friends, Family, Kids, Sons and Daughters. ULTRA CAPACITY BATTERY: Large capacity lithium battery, the battery life can be up to 2 years (If the product is damaged within one year, we will replace or refund), do not worry about the replacement tedious battery. vacation for friends, family, kids, sons and daughters. APPLICATIONS: Using ultra-modern -wall vacuum technology, this mug is both stylish and substantial. Whether you are on the go, at home, in the office or outdoors, this is the perfect companion. Simple and practical, it is the best holiday gift for friends, family, kids, sons and daughters. Product description Color: Black Description: SUSTAINABLE KEEP WARM AND COLD 1. Our products maintain liquid heat above 42 C for up to 6 hours. 2. And liquid cooling temperatures below 10 C for up to 5 hours. 3. After 24 hours at 100 C, the temperature is maintained at about 40 C. LED temperature display touch screen 1. Waterproof LED display that can be completely submerged in water. 2. The stylish mirror, the internal liquid temperature is easy to understand by touching the LED screen. 3. You don't need to use your mouth to test the temperature and avoid burns. Leak-proof design 1. The travel mug is sealed and splash-proof to ensure a perfect and secure seal and reliable, leak-free performance. 2. Therefore, after locking, you can place it anywhere. Avoid accidental opening of the packaging. Package includes: 1 * Insulated Bottle