One of the top-selling coffee mugs on Walmart right now would be our ionmug, and for good reason. It has a 4.3-star customer satisfaction rating from almost 600 customer reviews, proving that it is one of the smartest and most popular choices for anyone that needs a new mug. With a powerful charging coaster, this self-heating mug keeps your coffee, tea, hot chocolate, and other favorite drinks nice and hot all day long. With a compact, simple, and convenient design, the stainless-steel automatic heating mug quickly warms up your beverages to your chosen temperature (135°/140°/145°F) with just the press of a button. The included charging coaster keeps the mug powered up throughout the day, while the mug’s LED indicator lights always keep you aware of the mug’s temperature for greater peace of mind. The ionmug and Charging Coaster is a reliable and innovative solution for getting the most flavor out of your beverage and enjoying a satisfying drink every time.