Come and see our amazing products. Keep Your Drink Perfectly Hot: This mug is double layered with vacuum insulation and has a press-in lid. It is heated by wireless charging between 100 degrees F- 131 degrees F (40-55 degrees C) by the warmer coaster, which maintains a comfortable temperature range for hot beverages such as coffee, cocoa, milk or tea.Inductive Fast Wireless Charger: The wireless charger also can wirelessly charge your iPhones or Android smartphones at up to 15W power. Included: Stainless Mug with Lid, Warmer/Charger Pls confirm with us about the packing info, stock color and exact production time before placing your order.