【Functionality】 Connect it to your car's cigarette lighter socket and you can make hot water up to 90°C! You can even eat cup noodles, making it perfect for outdoor activities, car camping, or lunch in your car while at work. It has operation buttons that allow you to set the temperature. For example, if you buy hot coffee at a convenience store and transfer it to this tumbler, and set it to 60°C while connected to the cigarette lighter socket in your car, you can always drink warm coffee! Comes with a dedicated cigarette lighter socket cord. Capacity: Approximately 420ml It took about 30-40 minutes to make 90°C hot water after putting in room temperature water and connecting it to the cigarette lighter socket. ■ When using the car's cigarette lighter socket (12A～), the temperature can be set up to 90°C. ■ Simple touch operation makes it easy to use. ■ Uses SUS304, which has high heat resistance and insulation. ■ The main body can be washed with water! Used less than 10 times. I've also included photos, and I think the inside is quite clean. There are fine scratches on the outside due to use. Please understand that this is a used item. The tumbler is made of SUS304, which is used in tableware, and Tritan material, which is used in baby bottles. 【Features of SUS304】 Among stainless steels, it excels in strength and temperature changes. It has low thermal conductivity and high insulation, making it suitable for cups and water bottles. It is also an environmentally friendly material that is easy to recycle. 【Features of Tritan】 It has excellent heat resistance, durability, and impact resistance. It does not contain environmental hormones or chemical substances, so it can be used safely and with peace of mind. Therefore, it is also used in tableware, medical items, and items for infants. ■ Car battery protection function You can operate the tumbler while it is connected to the cigarette lighter socket in the car. To protect the car's battery and the tumbler, the power will automatically shut off when the power is low. ■ Sealing power The lid has a rubber gasket. It is tightly sealed like a general water bottle, so you can carry it with confidence. ■ Rubber bottom non-slip A rubber pad is used on the bottom of the tumbler to prevent slipping. It prevents the contents from spilling in the car or on a desk. #Outdoor #CarCamping #OutdoorHotWaterBoiler #InsulatedTumbler #TumblerThatMakesHotWater #ConvenientGoods #DisasterPreventionGoods