This car cup holder can warm and cool the coffee, beverage and milk. Just connect directly to cigarette lighter by adapter cable, push WARM or COOL button, enjoy your drink.Heating and Cooling: Keep your drink hot or cold in 10 minutes, heat up to 140 Fahrenheit,coolest at 21 Fahrenheit.Safe: Pass the RoHS and CE. When voltageLess than 10.5V, it will be automatic shutdown to protect the car battery.Application: Enjoy your cold beverage in summer or hot coffee in winter, when traveling, working or outdoors.Power rate: 36W, noise: Less than 53dbDesigned to heat beverages and refrigerated beverages on car cigarette lighters, and maintain warmth at 140 Fahrenheit, Or cool to 21 Fahrenheit, with electronic thermostat function. Excellent fit for drivers, enjoy a hot coffee or water on the way Or a Cool Beer and beverages on the way.Project: Car smart cupRated voltage: DC12VNote:1.Only for 12V models Car2.Caution when handling as it contains hot or cold beverages.3.Do not Press the inside of the cup when on heat.4.Do not use heat with bottles or cans with carbonated beverages.Colour:WhiteMaterial:plasticSize:3.9x3.9x6.3 inchesPackage Contents:1 x Car Cup HeaterOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.