Large-capacity stainless steel lunch box with silent heating, convenient for carrying. - Colors: White Orange, Purple, Green Pink - Material: Plastic - Features: Double sealed, silent heating, no water needed - Capacity: 1 liter - Wireless heating: No need to plug in, freely controllable - Comes with a lunch bag - Includes USB Type-A and USB Type-C charging cables - Charger sold separately - Free shipping Suitable for all seasons You don't need to remove the inner container, enjoy the deliciousness before cooking 6-hour cold storage/preservation No need to add water for heating No steam, no burns Double seals to prevent leaks and accidental tipping How to use There are three lamp colors: - Blue (KEEP WARM) - Red (HEATING) - Green (Flashing indicates the battery charging indicator light, the battery light will stay on when the battery is fully charged) There are two options on the touch button: TIME / ON OFF Press for 1 second to turn ON OFF TIME is a timer KEEP WARM / HEATING KEEP WARM keeps warm (30 minutes, 45 minutes, 1 hour to 4 hours) HEATING heats (10 minutes to 50 minutes, after heating for the specified time, it will automatically switch to 2-hour insulation mode)