Bento Warmer Just plug it into USB Warm Bento I purchased this from Rakuten a few years ago. It's unused. I confirmed it powered on when listing it. It's been kept in the bag it arrived in for a long time, so there are some fold marks. You can easily enjoy a warm bento. It's recommended not only for bento boxes but also for just onigiri (rice balls). Since it's unused, I'm not sure how warm it will get. Set includes the main unit and cable. The cable has a pocket to store it in. I will ship it via anonymous Mercari delivery! Thank you very much. ※ No price reduction is expected. ※ I am using a photography board for the photos. 【Features】 This is a lunch bag with a built-in heater that can keep bento boxes and drinks warm. You can enjoy your bento warm when you're out and about, and it's useful for leisure, hobbies, and club activities. There is a pocket on the back to store the cable. ● Warm Rice Built-in heater & aluminum vapor deposition film specification, the inside is fully insulated for long-lasting warmth. Lunch Jar Insulated Bento Onigiri Insulation