Comes in original box with charging coaster and plug. The Ember Mug 2 features a stainless steel core and a soft touch exterior. Two rings on the bottom of the mug connect with the charging coaster to charge the battery and maintain the drinking temperature while in contact with the coaster. Hand wash mug. Wipe clean charging coaster. What's in the box: Ember Mug 2 and charging coaster Holds drinks at a specified temperature between 120-145°F 10-ounce mug maintains temperature for 90 minutes 14-ounce mug maintains temperature for 80 minutes Rechargeable lithium ion battery has 3-hour battery life Stainless steel core and soft touch exterior Ember app is iOS and Android compatible Hand wash mug, wipe clean charging coaster