WATERPROOF LED SCREEN: Waterproof LED screen that can be completely submerged in water. Stylish mirror, easy to understand the internal temperature of the liquid by touching the LED screen. It is not necessary to pass your mouth to check the temperature and avoid burns. The 360 degree rotation doesn't have to worry about water leaking and the seal is good. KEEP HEAT COLD LASTING: Vacuum from cups and mugs can block heat transfer. Our products can maintain liquid heat above 42 C for up to 6 hours, and liquid cooling below 10 C for up to 5 hours, which is longer than other insulating bottles. (After 24 hours, 100 C of water, the temperature remains around 40 C) SAFE, HEALTHY AND PORTABLE: The 500ML premium vacuum flask liner is made of food grade 304 stainless steel, and the outer shell is made of high quality 204 stainless steel. Robust, corrosion resistant, safe and healthy. It has been approved by the FDA to meet all of your alcohol needs. Of course, 100% is BPA free. (Size: 6.5cm * 6.5cm * 23.3cm) HIGH CAPACITY BATTERY: Large capacity lithium battery, automatic display when not in use, can reach 2 years battery life (If the product is damaged within one year, we will exchange or refund), no need to worry about bulky battery replacement. The new black technology smart water cup, get rid of the trouble of charging, bring a different experience. APPLICATIONS: This mug is ultra modern and stylish. Whether you are on the go, at home, in the office or outside, this is the perfect companion. Simple and practical, it is the best holiday gift for friends, family, kids, sons and daughters. Product description SUSTAINABLE KEEP WARM AND COLD Our products maintain liquid heat above 42 C for up to 6 hours. And liquid cooling temperatures below 10 C for up to 5 hours. After 24 hours at 100 C, the temperature is maintained at about 40 C. The cup has a suitable volume and tightness so that the liquid does not overflow. The intelligent real-time water temperature display always knows whether the drinking water temperature is anti-scald,The tactile switch is activated and then automatically deactivated within 3 seconds. It can help you understand water temperature easily, give you the most intimate drinking experience, avoid burns and enjoy coffee. 500ML capacity Just like a normal 500ml drink in your hand but in a better cold / hot version. Package Dimensions: 7.0cm * 7.0cm * 24cmVacuum insulation technology keeps food and drink hot and cold For conventional containers, heat or cold enters the interior by convection. Food vial Most Drinks Including water, pumpkin, smoothies, tea, coffee, instant hot chocolate, frozen drinks, wine and even soup Fits regular cup holders, large enough to hold regular ice cubes.Vacuum insulation creates an airless space between the two walls, Virtually eliminates convection and temperature changes. hand wash only Please wash it with soap and water before first use. Do not put it in the washing machine. No matter what the forecast, your drink will stay cold or stuffy. The tactile switch is activated and then automatically deactivated within 3 seconds. With advanced double wall vacuum technology, this mug is stylish and durable. On the road, at home, in the office or on the go, the perfect companion. Simple and practical, it is the best Christmas gift for friends, family. Large capacity lithium battery, the screen will automatically turn off when not in use can achieve up to 2 years battery life. You don't have to worry about the problem of replacing the battery every day. If the lid is closed within one year, please let us know as soon as possible. Perfect for any occasion Office Stop using disposable plastic bottles. Food grade stainless steel bottles are healthier for you. You can drink your fresh and delicious water anywhere, anytime, tasteless and leak free