450ml Smart LED Temperature Display Tumbler 316 Stainless Steel Vacuum Insulated Coffee Mug Leakproof Travel Cup

316 Stainless Steel: Upgraded 316 stainless steel inner liner provides superior corrosion resistance and eliminates metallic taste, making it ideal for a wide range of beverages.

Double-Wall Vacuum Insulation: Advanced vacuum-sealed construction ensures that hot beverages stay warm for up to 6 hours and cold drinks remain refreshing for up to 12 hours, providing consistent temperature control throughout the day.

One-Touch Leak-Proof Lid: The precision 360° silicone gasket seal and one-touch flip lid design prevent spills and drips, making it safe to carry in bags and backpacks without worry.