Multifunctional Yogurt Maker and Cup Cooler: This Smart hot and cold cup is not just a typical mug, it offers fast heating and cooling features. With the ability to reach a heating temperature of 60°C and a quick temperature of 0°C, it ensures your beverage is always at your desired temperature. Additionally, it has the unique capability of making homemade yogurt with automatic fermentation. Durables materials: Constructed with metal-frosted paint, this mug is resistant to wear and scratches. The glass container is easy to clean, and the bottom is equipped with a rubber pad for stable placement. High power efficiency: Utilizing a high-power thermoelectric chip along with optimized air duct cooling technology, this mug achieves quick heating and cooling of both hot and cold drinks in a fraction of the time. Multi-scene usage: for a variety of occasions, from enjoying hot milk to family dinners. Its is straightforward, allowing you to switch between heating and cooling modes effortlessly with a simple button press. Must-Have: There's nothing better than having a cold drink during the scorching days. With this Smart hot and cold cup, you can enjoy the luxury of having a cold beverage while others' drinks turn lukewarm. This Smart hot and cold cup takes your beverage experience to a whole new level.