Main Material: Stainless Steel
Insulation time:12 Hour (Cold & Heat)
Battery: Built-in Chip Battery (Smart Temperature Display)
No need to replace the Battery: built-in high-performance Battery, with low-power chip, intelligent temperature control technology automatically cut off when not in use.
Material: safe to use, lightweight, easy to carry.
Smart Temperature Display: When your finger touch the cover it will display the internal temperature.
Easy To Clean: Cup cover waterproof, which is convenient for washing, just wash the bottle in water.