- Stainless steel material: inner wall is 304-grade food-grade stainless steel and the outer shell is high-quality 201 stainless steel. The design is non-slip and non-spillable, safe and healthy to use. - Temperature display and energy efficiency: the smart water bottle uses an LED display and is leak-proof with low energy consumption, no need to replace batteries, and can be used for many years. Gently press the top to activate the touch cover and instantly display the water temperature, helping you avoid scalding. - Easy to clean: simple structure with a removable cup mouth for cleaning. The cup mouth is smooth and will not cut your lips. It has a large diameter, and a removable filter to filter tea leaves and other residues. The bottom is non-slip and durable. - Perfect design: cylindrical form reduces spills and shaking. The bottle is leak-proof and safe to carry when you go out. The 500 ml capacity fits most cup holders and can be easily placed in a travel bag. This vacuum insulated glass cup is the perfect gift for any occasion. - Versatile and portable: ideal for hiking, cycling, shopping, or office use. It keeps drinks at the intended temperature for extended periods: cold drinks stay completely chilled for up to 24 hours, or coffee and tea stay hot for up to 12 hours. Use scenarios - Outdoor activities: take this bottle on hiking or cycling trips to keep water cold for hours, while the 500 ml size fits backpack pockets and cup holders. - Office or commuting: use the LED temperature display to monitor hot beverages without guesswork, and rely on the leak-proof design for desk and transit use. - Travel and gym: convenient to pack in a travel bag, bag a gym session, or run errands, with reliable temperature retention and spill prevention.