Feature:1. LED Display: Smart water bottle features LED temperature display that can avoid the embarrassment of burning your mouth and lips.2. Stainless Steel: The inner wall is made of 304 grade food grade stainless steel and the outer shell is made of high quality 201 stainless steel.3. Easy to : Vacuum insulated water bottle possesses removable spout and detachable filter net, providing more convenience for .4. Wide Application: Suitable for travel, hiking, biking, shopping, and office, to reduce shaking, and the bottle is leakproof and safe on the go.5. Perfect Gift: 500ml water bottle can keep your beverage cold for 24 hours, or keeping your coffee hot for about 12 hours. Ideal and perfect gift for your friends and family.Specification:Item Type: Vacuum Insulated Water BottleMaterial: 304 Stainless Steel Inner Wall, 201 Stainless Steel Outer ShellCapacity: 500mlBattery Capacity: 50mAh (Built in Button Battery)Battery Type: Button Battery (1 Piece)Battery Model: CR2032 (1 Piece)Product Size: Approx. 23.5 x 6.5cm / 9.3 x 2.6inWeight: Approx. 302g / 10.65oz Package List:1 x Vacuum Insulated Water Bottle