The Best Heated Travel Mug

Power supply: 12V for car (cigarette butt plug, built-in fuse, safer to use)
Material: Surface: Stainless steel
         Inside: environmentally friendly plastic
Size: Cup mouth: 85mm
       Base: 66mm
       Height: 160mm
Capacity: 450 ml
Heating temperature: about 65 ℃ (cannot boil water, because it is dangerous to have a cup of boiling water on a bumpy car