Hugmazing Cordless Electric Lunch Box for Adults Men & Women – Rechargeable Self-Heating Food Warmer with 1100ML SS Container Battery-Powered Heated Lunch Box Perfect for Work and Travel Use

Important Usage Guidelines: Fully Charge Before Use: Please ensure the device is fully charged (100% battery) before initial use to ensure optimal performance. Avoid Frequent Button Pressing: Refrain from pressing the buttons repeatedly to prevent triggering the device's voltage protection mechanism. In Case of Automatic Shutdown: If the device shuts down automatically due to voltage protection caused by frequent key operations simply connect it to a power source to restore functionality.