Item Type: Smart Insulation Cup Product Material: Stainless Steel, Silicone Product Size: Approx. 19 x 6.5 x 6.5cm / 7.5 x 2.6 x 2.6in Weight: Approx. 285g / 10.1oz Capacity: 420ml Chip Model: 3827RG N V1.020201017 Battery Model: CR2032 180mA LED lithium manganese battery (built in battery) 1、TEMP DISPLAY: Built in smart chip, the insulation cup has an intelligent display, which clearly displays the temperature, without fear of scalding.  2、DOUBLE LAYER: The water bottle has double layer design, which can keep heat and cold, and has sufficient airtightness and good heat preservation.  3、STAINLESS STEEL: Double layer stainless steel insulation cup, which is rustproof, corrosion and high temperature resistant, and has a long service life.  4、GOOD SEALING: The cup cover is provided with silicone sealing ring, which is resistant to aging, and equipped with safety lock to prevent accidental opening.  5、WITH BATTERY: The insulation cup has a capacity of 420ml, which is convenient to carry outside, built in 180mA battery, which can be used for a long time.