Keep your beverage hot for an extended period with this Ember mug. The mug can be connected to your phone through Bluetooth to the Ember app to personalize it. Perfect for home or office. It is practical choice for those who value a consistently warm drink. Make an account to explore coffee/tea through the Ember app. Includes: 1 mug (10 oz), 1 coaster, and a charger. Pre-owned in excellent condition (like new)! Smoke-free home.