USB Warmer & Cooler device of drinksجهاز تسخين وتبريد المشروبات

 USB Coasters Two-Way Cooling & Heating USB Warmer & Cooler for Milk Tea Coffee Mug Hot Drinks Beverage Cup Mat Tools Heater

AliExpress purchase link

Two-way Cooling & Heating, Two-way switching
Package B: Default Configuration EU Plug Power Adapter

Tips: 
Package A: Options: “Black and USB Cable", "White and USB Cable", "Blue and USB Cable":
Package A Contains:USB coaster + USB Cable + English manual + Gift Box

Package B: Options: “Black and EU Adapter", "White and EU Adapter", "Blue and EU Adapter":
Package B Contains:USB coaster + EU Power Adapter + English manual + Gift Box

Package C: Options: "Only EU Adapter"
Package C only Contains an "EU Power Adapter