[On-the-go Convenience] With a built-in 5000mah battery, this food heater is great for enjoying warm meals or while traveling. [Adjust to Your ] Customize the heating temperature to suit your needs, making this lunch box a practical and versatile choice for every meal. [Charming Design] Enhance your dining experience with this cute and functional lunch box, ideal for indoor use, outdoor activities, and traveling adventures. [Portable and Efficient] Enjoy warm meals anywhere with this electric lunch box that requires no water for insulation, keeping your food at the great temperature. IPX7 waterproof charging port uses magnetic plug. The whole device is washable and can be cleaned without dead corners. 5000 mAh large battery, long battery life 40/50° two-speed heating options Intelligent variable frequency constant temperature 3 seconds fast heating Easy to carry, can be with USB or power bank 400 ml large capacity to meet children's needs Color: White Material: 316 Stainless Steel + PP + Silicone Package Contents: 1 * electric lunch box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.