Amazon: Cauldryn Coffee Heated Travel Mug Only $89.99 Shipped (Boils Water on the Go & More)
This mug does it all! It is vacuum sealed, temperature controlled and can even boil water! Your coffee or tea will always be at the perfect temperature as the battery pack provides power for perfect all day temperature control. You can even download the free Cauldryn app and control the mug from your phone!