- Waterproof LED Display : This innovative LED indicator is fully waterproof and can be completely submerged. With a simple touch, the LED screen accurately shows the liquid’s temperature, eliminating the need for mouth testing and reducing the risk of burns. - Superior Temperature Retention : Our double-walled vacuum insulation effectively blocks heat transfer, keeping beverages hot for up to 6 hours (above 42 °C) and cold for up to 5 hours (below 10 °C). Enjoy your drinks at the ideal temperature longer than traditional vacuum bottles. A built-in filter prevents tea leaves, fruit pieces, and ice cubes from reaching your mouth while drinking. - Safe, High-Quality Materials : Crafted from food-grade 304 stainless steel on the inner wall and durable 201 stainless steel on the outer casing, this product is FDA approved and completely free from BPA. Dimensions are 6.5 cm x 6.5 cm x 23.3 cm, making it perfect for travel or home use. - Extended Lid Lifespan : Designed for durability, the lid has a service life of over 1 year, ensuring consistent performance without frequent replacements. Use Scenarios : - At Home : Enjoy perfect temperatures for tea and coffee during morning routines without the need for constant reheating. - On the Go : Ideal for commuting or outdoor activities, keeping your favorite beverages hot or cold for long hours. - Social Gatherings : Serve up beverages at gatherings with confidence, knowing they'll maintain their temperature while remaining fresh and free of floating bits. This product combines functionality and convenience, making it a must-have for beverage enthusiasts.