100% Stainless steel
E. Do Not Open The Switch And Cover When The Product Is Or Switched, And The Cover Is Aside.
B. Do Not Tilt The Bottle Quickly When Drinking
5. Don't Get Close To The Heat Source, And Don't Hit It Violently.
The Cup Lid Is Equipped With Electronics. When Your Hand Touches The Cup, The Temperature Will Be Displayed. There Is No Need To Charge. The Intelligent Display Life Of Each Cup Is About 20,000 Times When The Temperature Is Displayed.
(1). Please Attention To Avoid Burns