Feature: 1. Safe Material: The travel car electric heating cup body is made of 316 stainless steel inner tank, advanced inner drawing process, no welding seam, no welding slag. 2. 12V 24V Dual Voltage Universal: Can be used for cars large trucks; (12V-100W; 24V-180W;) Lightweight and portable, with preset temperature function, quickly heat to the desired temperature. It only takes 15‑20 minutes to heat 460mL of water to 100℃ at room temperature (24V test result). 3. 12H Long Term Heat Preservation: The bottle hat has a leakproof threaded rubber ring, which will not cause boiling water to spill due to bumps in the car, preventing high temperature burns. 4. Bold Power Cord: Effectively prevent heat generation, prolong the service life of the wire, and prevent dry burning technology. When there is no water in the water cup, it will automatically power off, making you safer and more assured to use. 5. 460ML High Capacity: Electric cup is perfect for gift, work, school, travel, camping. It is the perfect Christmas gift for your family and friends, colleagues, Thanksgiving gift. Specification: Item Type: Heated Mug Material: 316 Stainless Steel Product Size: Approx. Diameter: 75mm / 3in Height: 239mm / 9.4in Capacity: 460ML Plug Voltage: Cigarette Lighter 12/24V (Universal For Large And Small Cars) Boil Time: 15 to 20 Minutes Weight: Approx.963g / 34oz. Package List: 1 x Electric Cup1 x Power Cord1 x Filter Cup