Designed for Home or Office, the Ember Mug 2 Does More Than Simply Keep Your Coffee Hot. Our Smart Mug Allows You to Set an Exact Drink Temperature, So Your Coffee is Never Too Hot, or Too Cold. Ember Then Maintains Your Chosen Temperature for Up to 1.5 Hours with the Ember Mug 2, 10 Oz & Up to 80 Minutes with the Ember Mug 2, 14 Oz - So Your Hot Beverage Stays Perfect. Ember Mug 2 is Safe to Hand Wash & Submersible Up to 1 Meter in Water. Stainless Steel Metal with Bpa Approved Ceramic Pottery Coating. Available in Black & White. Minimum Quantity: 10