Designed for home or office, the Ember Mug², 14 oz does more than simply keep your coffee hot. Our smart mug allows you to set an exact drinking temperature, so your coffee is never too hot, or too cold. Ember then maintains your chosen temperature for 80 minutes so your hot beverage stays perfect. • Built-In Rechargeable Battery – 80 Minute Battery Life • Temperature Range – 120°F - 145°F • Smart LED – Indicates When Beverage has Reached Your Perfect Temperature • Safe to hand wash – Fully submersible up to 1 meter deep. • Ember App – Set Your Temperature and Customize Presets. iOS and Android compatible. Number of Pieces: 2 Dimensions (Overall): 4.6 Inches (H) x 4.5 Inches (W) Capacity (Volume): 14 Ounces Service For: 1 Includes: 1 Mug, 1 Coaster Used For: Hot Beverages Material: Stainless Steel, Ceramic, Polycarbonate Care & Cleaning: Hand Wash Origin: Imported Questions? Leave a comment below!