500ml Smart Thermos Flask with LED Temperature Display

• LED display on the cap shows the exact drink temperature in °C — touch the cap, screen lights up • Double-wall stainless steel vacuum insulation — keeps drinks **hot up to 12 hours** or **cold up to 24 hours** • 500 ml capacity — fits a full pot of chai or 2 standard coffee cups • Built-in temperature sensor with low-energy battery — runs for months without charging • Leak-proof screw cap — safe to drop in a backpack, car cup holder, or office tote • 304 food-grade stainless steel interior — no plastic taste, no rust, BPA-free