Suffering through a cup of lukewarm java or microwaving your tea just doesn't cut it anymore? Keep your coffee or tea hot from your car to your office desk with the Koolatron 12 Volt/USB Electric Travel Mug. The portable mug features a stainless steel interior and exterior, and an ergonomic design to fit standard cup holders.Plug this electric travel mug into your vehicle's 12 volt plug to keep your drink piping hot, no matter where you go. The USB plug feature also allows you to plug this mug into any USB port to maintain the warming feature. The 12 Volt/USB travel mug is available in red or silver.