Smart Temperature DisplayThe smart water bottle has a waterproof LED display,Easy to understand the Water temperature of the liquid by touching the LED Large Screen.it's low energy consumption and without a battery change. Double Wall Vacuum Insulated Technology: This Vacuum Insulated is 18/8 stainless steel Coffee Mug can keep beverages cold for up to 24 hours and keep hot for at least 6 hours.Eenjoy the iced coffee in the hot summer and drink warm coffee or hot tea in the cold winter, that will be a great gifts for female. High CapacityAbout17 oz500ml,Size:about 2.56inch(6.5cm)*8.86inch(22.5cm),It has a refined appearance and just the right size.These smart water bottles are ergonomically designed make the user more elegant and will not fall from hand. Perfect Design and Portable:The Coffee Thermos Bottle are designed with an opening wide.Easy-clean lid opens completely for thorough cleaning.Compact design takes up minimal space while maximizing capacity.Fits most cup holders and It is very convenient to carry,can be put in the car,gym,office, outdoor activities-Hiking and home.Put anywhere as you want and no worry to wet your place. Gifts For Women:The thermos water bottle is your praise and expressions of love for girl friend,mothers,lovers. happy birthday gifts for women, thank you gifts for teacher,friends.Perfect for 18st birthday, 20th and so on milestone birthday gifts . And perfect for thank you gifts, birthday gifts for mom,,appreciation gifts, farewell gifts..