1. Distinctive feature: TEMPERATURE DISPLAY: This style thermos has a smart LED temperature display on the top of the thermos, which can withstand up to 80,000 touches without changing the battery. That's about 5 years of use. You can see the heat at any moment by simply gently touching the top of the thermos lid. Gently press the top of the thermos. The sensitive touch - sensitive lid shows the temperature of the water inside the thermos, helping you avoid burns. 2. FOOD GRADE MATERIAL: Made of 304 stainless steel, it is rustproof, corrosion resistant, and non - toxic. You can store ice, coffee, milk, beer, drinks, etc. 3. EASY TO CARRY: A 17oz capacity is suitable for carrying anywhere, such as for outdoor sports, in the office, at the beach, in school, on a picnic, during hot yoga, hiking, camping, cycling, running, walking, at the gym, or for fitness. It can easily slide into a car cup holder, bike rack, or a bag on both sides of a backpack. Wherever you are, you can enjoy the convenience of a travel tumbler. (Note: Keep an appropriate amount of liquid to prevent it from spilling). 4. Insulation material: It has a double - layer vacuum construction and good sealing. When filled with ice or boiling water, it can keep water hot or cold for 12 hours, won't sweat, and won't be hot to the touch.