Makes your morning more fun. Beat the sadness that the morning brings with this exciting Color Changing Mug. Our heat changing coffee mugs are magic mugs. Why? Because it is a battery mug that changes color when it is filled with a hot liquid. This temperature coffee mug effect is created by using thermochromic ink. These magic mugs heat sensitive are often manufactured and sold as gifts. How to activate color change. In order to activate funny coffee mugs the temperature of the hot liquid should be over 70C/158F5. At that temperature it is possible for the color of the coffee mug to change. Buy this mug heat and have fun with it Magic coffee mug is entirely safe to use daily. Coffee mug color changing can be usable and wash daily and will still be in great shape. Cozy evenings. Your autumn and winter evenings will be so much better with temperature changing mugs. Coffee mug sensitive is great also for tea or cocoa. Coffee mug heat sensitive will make your coffee time so cozy and comfy. Mugs that change colors are also so much fun so it will brighten your winter evenings Perfect gift. Magic tea cups are a perfect gift not only because everybody loves cute mugs. It's also something different, that will surprise your close person. Its a perfect gift for men, the color changing mugs for men, can also be called programmer mug or developer mug. Buy it for your dad, color changing mug fathers day is perfect gift Keeps track of coffee temperature. Dont you hate it when you take a sip of your morning coffee and its cold? Well with this unique coffee mugs you dont have to go through this unpleasant experience anymore. As your coffee cools off, your funny coffee mug turns back to black