Product Specifications: Material: 304 stainless steel Package includes: 1Pcs* thermos bottle Color: Black ,White Size: 500ml Smart Digital Design : With HD LCD touch screen for prompt realtime water temperature display. Let you drink the water that is most suitable for temperature anytime, anywhere. Insulation Material : Made of 304 stainless steel, double layer vacuum design, safe, BPAfree and ecofriendly, no smell and easy to clean. It can keep hot or cold water for 12 hours. Multipurpose : This vacuum flask water bottle is also a good container for coffee, Juicer, milk, beer, drinks and daily hydration. Best Gift for family and friends. 1. Due to the influence of light and monitor, the color may be slightly different. 2. Due to manual measurement, please allow 0.51cm error. Thank you for your understanding! Tip: Because this thermos has a builtin battery! In order to save power and extend battery life (reduce unnecessary clicks), it takes 23 fingers to touch the display to display the temperature!