Stainless Steel Material: Manufactured from food grade 304 stainless steel, electric travel mug is wear-resistant, durable, and not easy to damage. It can be used for a long time.Keep Warm for 5-7 Hours: Car water heater with an integrated waterproof design can keep warm for 5-7 hours, temperature controllable, with four functions: boiling water, keeping warm, making tea, and heating milk.Flipped Upwards 270 Degrees: Car coffee warmer provides the current protection mode with dual gears modes of high current and low current. The lid can be flipped upwards 270 degrees.Touch-to-speech Buttons: Heated cup mug solved the problem of limiting the flow of smoke inlet of some models. And it has new technology touch voice buttons, LCD screen, and a boiling automatic alarm to stop heating.Tea Glass Design: Travel water heater has tea glass and a non-slip design on the bottom. The power port located in the middle side of the cup body perfectly solves the old cup holder power line crowded space problem.Specification: Name: Car Electric Heating CupVoltage: 12V or 24V intelligent recognition voltage and currentColor: Wisdom Black or Athens WhiteMaterial: food grade 304 stainless steel inner plate, PC cup body, cup lidSize(approx.): height 22.5cm or 8.86in, bottom diameter 6.5cm or 2.56in, cable length 1.25m or 0.49inNominal voltage: 75-90W (high HI mode and low LO mode are adjustable in two gears)Capacity: about 500mlBoiling time: about 25 minutes to boil 100Packing List:Electric Heating Cupx1Power Cordx1