【450ML CAPACITY AND 12V UNIVERSAL CAPACITY】: Travel mug with 450ml capacity lighter plug, great for travel use when going out with families, good electric thermos for travel and camping to keep coffee warm. DC 12V Electric Water Kettle, Cigarette Lighter Plug, Universal for Cars with 12V Power Source, Allows Drinking Hot Water, Coffee, Milk and Tea on the Road 【Safe Non-toxic Material & Airtight Kettle Lid】: The coffee mug and lighter plug are made of premium 304 stainless steel and food grade PP material, safe for drinking boiled water. The sealed lid of the kettle is made of high-quality silicone gel, which is safe and non-toxic, and has good sealing performance to keep the water warm, ensuring that the drink will not spill out. 【Vacuum Insulated Double Layer】: Travel mug and lighter plug indoor and outdoor use vacuum insulation technology, double layer vacuum insulated to keep hot drinks, which brings good insulation effect to prevent burns. The car power mug warmer is perfect for most car cup holders and great for travel. 【With indicator light and easy to use】: The built-in mug and lighter designed with a signal lantern can understand the working status of the electric mug