Temperature DisplayNo need to charge, you can check the temperature inside the thermos by touching the LED screen. Automatically shuts off after 3-4 seconds. Tip: When testing, first invert the water glass to make full contact with the lid core. Keep Hot or ColdVacuum Mug The tight closure securely keeps the contents in the mug . Because a vacuum hinders heat transfer. No matter how hot or cold it is outside, your beverages will stay warm in the Insulation . Safe and HealthyThe inner liner of the leak-proof drinking bottle is made of food-grade 304 stainless steel, and the outer shell is made of high-quality 201 stainless steel, which is antibacterial and corrosion-resistant. BPA free for your hydration needs. Environmental protectionReusable. This water bottle is perfect for anyone who likes to carry their favorite beverages with them while actively avoiding contamination. The cup also includes a filter that blocks tea, fruit, ice, etc. Wide ApplicationThis mug is beautiful in appearance, comes in a variety of colors, whether you are traveling, at home, in the office or outdoors, it is your ideal companion. Simple and practical, it is the best Christmas gift for friends, family. Delivery Quantity: 1pcs Product color: mixed color Product size: 22.5*7.5cm