- User-Friendly Design: This cigarette lighter coffee mug features an indicator light that clearly shows its operational status. Simply fill the mug with water, plug it into your car's 12V power source using the included cigarette lighter cable, and enjoy hot beverages on the go. - Superior Insulation: Utilizing advanced vacuum insulation technology, this double-layer travel mug effectively retains heat, ensuring your drinks stay hot while preventing burns to your hands. - High-Quality Materials: Crafted from food-grade 304 stainless steel, this car water boiler is odorless, corrosion-resistant, and durable. The high-quality plastic sealed lid provides excellent sealing performance, keeping your drinks warm and preventing spills during travel. - Generous Capacity: With a 450ml capacity, this travel mug is ideal for families on the go, making it perfect for camping trips or long drives. Keep your coffee warm and ready whenever you need it. Practical Applications: 1. Perfect for road trips, allowing you to enjoy hot beverages without frequent stops. 2. Great for camping, ensuring you have warm drinks during outdoor adventures. 3. Ideal for daily commutes, providing easy access to hot coffee or tea while driving. This travel mug combines convenience, safety, and performance, making it an essential companion for anyone seeking to enjoy hot drinks on the move.