Never opened, still has plastic seal ✅ Allows you to set an exact drinking temperature, so your drink is never too hot/cold ✨ Temperature range: 120°F - 145°F (50°C - 62.5 °C) 🔥 Select your temperature and more with the Ember app 📱 Built in battery lasts 1.5 hours and all day when placed on charging coaster 🔋 Senses when to turn on and off 🌙 Smart LED light on mug indicates when beverage has reached its perfect temperature and more ✨ Holds 10 oz (295mL) ☕️ Weighs 14.5 oz (410g). Rim has 3.3 inches (83.2 mm) diameter. Mug has 4.2 inches (106.7 mm) height and 4.3 inches (109.2 mm) width including the mug handle 📏 FREE SHIPPING 📦✨ #mug #smartmug #selfheatingmug #newwithtags #gift