The USB lid by itself are unable to preserve refrigerated temperatures for insulin and medications. In its place, it's perfect for carrying open As well as in-use medicines amazing and protected from warmth, ensuring they continue to be at space temperature below the threshold of 79°F / 26°C. Here is https://knoxnmxwf.yomoblog.com/38885552/facts-about-best-insulin-travel-case-cooler-revealed