Input: 5V 0.8A (After being placed in 100°C water for 24 hours, the temperature will remain around 40°C) You don't have to use your mouth to test the temperature and avoid burns. 360- rotation does not need to worry about water leakage, and the sealing is good. -Fashionable , by touching the LED screen, you can easily understand the internal temperature of the liquid. -Long-lasting heat preservation effect: the vacuum of the cup will hinder heat transfer. -12 hours of or cold water Product Description Product name:Vacuum Flask Battery capacity: 2000mAh 3.7V/6.6Wh Size: 20x6.5cm Capacity: 500ML Output: 5V 0.8A Do not put the bottom of the cup in water and do not rinse the bottom with water, because the internal electronic components will damage the electronic products. 1 Vacuum Flask with LCD display temperature and mobile power supply -With LCD display, real-time water temperature is prompted by contact Our products are heated in liquids above 42°C for 6 hours and in liquids below 10°C for 5 hours. This is longer than other airless bottles. Material: stainless steel, food silicone -Suitable for easy travel, suitable for outdoor sports, office, beach, school, picnic, yoga, hiking, camping, cycling, running, walking, , fitness, etc. Weight: 350g -304 stainless steel, and Vacuum Coffee Mug Glass Battery Capacity: 2000mAh 3.7V/6.6Wh Capacity: 500ML (After Being Placed In 100°C Water For 24 Hours, The Temperature Will Remain Around 40°C) Input: 5V 0.8A You Don't Have To Use Your Mouth To Test The Temperature And Avoid Burns. 360- Rotation Does Not Need To Worry About Water Leakage, And The Sealing Is Good.