The 12V/USB Travel Mug from Koolatron takes coffee breaks to a whole new level. Not only does double-walled vacuum insulation keep your drinks at their ideal temperature for longer, this high-tech 500 mL stainless steel travel mug includes a USB cord and 12V DC adaptor to power the low-voltage heating element on the road or right at your desk so you can enjoy your morning java all day long. 17 oz (500 mL) capacity Double wall vacuum insulated Keeps your coffee, tea, or hot chocolate hot and ready to drink Includes 4 ft (1.2 m) USB power cord with 12V DC adapter Use unplugged to keep cold drinks cold Durable stainless steel construction Cool-touch handle Dishwasher safe lid Eye-catching silver and black color Ideal for home, school, office, dorm, or on the road Built-in USB/12V powered heater Mug/Teacup Measurements: 4.5 Width/Inches, 7.5 Height/Inches, 2.5 Depth/Inches Saucer Measurements: 3.5 Width/Inches Base Material: 95% Stainless Steel, 5% Other 5% Or Less Care: Hand Wash Material: Stainless Steel Country of Origin: Imported