With the Ember Slim Travel Mug, you can keep your coffee or tea at the ideal temperature anytime and anywhere. Connect the mug to your smartphone and set the ideal drinking temperature via the app. The integrated battery keeps your drink at the right temperature for 2 hours. Long enough for a long train journey or a car ride during rush hour. Once you're at the office, you can charge the mug with the saucer. You can save different settings per drink in the Ember app, so you don't have to set the temperature manually. The display of the travel mug shows the temperature of your drink.