1. Stainless steel material: The inner wall is made of 304-grade food-grade stainless steel, and the outer shell is made of high-quality 201 stainless steel, which is non-slip and non-spillable, safe and healthy to use. 2. Temperature display: The smart water bottle with LED display is leak-proof, low-energy consumption, no need to replace batteries, and can be used for many years! Gently press the top of the water bottle, and the sensitive touch cover can instantly display the water temperature in the water bottle to avoid the embarrassment of scalding. 3. Easy to clean: The structure is simple, the cup mouth can be removed for cleaning, the cup mouth is smooth, will not cut your lips, the cup mouth has a large diameter, and the removable filter can filter tea leaves and other residues. The bottom of the cup is not easy to slip and is durable. 4. Perfect design: The cylindrical design reduces spills and shaking. The bottle is leak-proof and safe when you go out. The 500 ml water bottle fits most cup holders and can be easily put into a travel bag. This vacuum insulated glass cup is the perfect gift for any occasion. 5. Versatile and portable: You can take this portable water bottle with you when hiking, cycling, shopping, or leaving it in the office. Place at any temperature and your cold drink will stay completely chilled for up to 24 hours, or your coffee or tea will stay hot for up to 12 hours.