What happens when baby formula is too hot or too cold? Babies can burn their mouth or suffer from digestion problems. Yet it is often a hassle for parents—especially when traveling—to prepare formula at the right temperature. The Allcom Smart Tumbler solves this with precise dual-mode cooling and heating in the 13°C to 45°C range using Peltier semiconductor technology. An internal sensor and Bluetooth connectivity enable real-time control via a mobile app, while a detachable SUS-316 (Surgical Stainless Steel 316) vessel ensures hygienic cleaning and durability, widely used in medical and food-grade equipment. The BPA-Free (Bisphenol-A Free) exterior ensures safety, while vacuum insulation enhances thermal performance. Its modular design allows easy maintenance and extends product lifespan. Beyond baby care, the tumbler adapts to outdoor activities and professional beverage service, maintaining optimal drink conditions anywhere. This blend of precision control, hygiene, and portability makes it a true lifestyle innovation.