LIKE NEW / NO BOX / USED ONCE (retails for $180) -Ember Coffee Mug with Longer Lasting Battery: Our updated smart coffee mug's extended battery life keeps your drink at your preferred temperature (between 120°F - 145°F) for up to 80 minutes on a full charge or all day on its redesigned charging coaster -Smart With or Without App: Pair this temperature control mug with the Ember app to set the temperature, customize presets and more; Our self-heating coffee mug is also functional without the app and remembers your last-used temperature (135°F out of box) -Auto Sleep: Our heated coffee mug intelligently senses when to turn on and off; The mug enters sleep mode when empty or after 2 hours of inactivity; Ember wakes up when it senses movement or liquid -Hand Wash Only: An updated scratch-resistant coating is safe to hand wash; Ember Mug 2 is IPX7 rated and fully submersible up to 1 meter deep