LED Display Smart Water bottle Vacuum Insulated Flask 500ml Stainless Steel Thermal Cup With Digital Temperature Display. Temperature display: high-definition display screen makes you know the temperature. Made from premium material for safe and practical. use. Great gift choice for your friends and family members. Shake the thermal flask to give the most accurate tempreture reading, Simply Tap the lid for the tempreture of the liquid , tip the thermal bottle upside down and shake for the most accurate reading please note it will not be 100% accurate if not tipped upside down and shook. Thermal mug display contains long lasting lithium battery and power saving screen that turns off automatically when not in use. Battery life can last up to 2 years. Gr8 Home Smart 500ml Water Bottle Stainless Steel Vacuum Flask With Temperature Display White