🌍 Travel Smart, Stay Cool! Holds up to 7 insulin pens for all your travel needs. Keep your insulin at the perfect temperature without ice packs! Charge on-the-go with USB compatibility for ultimate convenience. Stay informed with a clear view of your cooler's internal temp. No more worries about freezing your medication! USB powered 50°F cooling 36-45°F control The 4ALLFAMILY VOYAGER Auto Shut Off Insulin Cooler is a TSA-approved travel case designed to maintain insulin at a safe temperature range of 36°F to 46°F. With innovative cooling technology, it reduces internal temperatures by up to 50°F without the need for ice packs. The cooler features real-time temperature monitoring, a spacious design for up to 7 insulin pens, and USB charging capabilities, making it the perfect travel companion for those managing diabetes.