This new style of flask has an intelligent temperature LED display on the top of the kettle that can be touched 60000 times without replacing the thermal bottle's cap to check the current temperature. This flask is made with food grade aesthetic 304 stainless steel material. The bottle can keep the drink hot and cool for 8 hours. vacuum insulated bottle, tea filter, smart LED indicator, touch to check water temperature, no need to charge, no need to replace the battery, 23 x 6.5cm size.