The Ember Travel Mug is designed for on-the-go use and can do more than just keep your coffee hot. With the smart mug, you can set an exact drinking temperature and maintain it for up to 3 hours, ensuring your coffee is never too hot or too cold. With the new touch display, simply tap the plus or minus symbol to increase or decrease the drinking temperature, or set your desired drinking temperature using the Ember app. Touch the Ember logo to access additional features like battery life, temperature, or cup names. Additional details: 355 ml; approximately 3 hours of battery life or all day with the coaster; temperature range is 50 °C - 62.5 °C.