I absolutely love the Ion mug with a charging coaster it works great and exceeded my expectations 100%. It keeps my tea an  coffee so hot and it last for an extremely long time witch is great for people who are on the go and super busy. I am definitely going to recommend the Ion mug to everyone that I know because it is definitely definitely worth it and I'm going to be buying one for my mother-in-law and my husband,. Thank you hometesterclub !! ⭐⭐⭐⭐⭐