Feature: 1. Large Holding Capacity: Insulin cooler case has a capacity to hold approximately 5insulin pens, 8 growth hormones, or 9 interferon vials, making it spacious enough to meet all your needs. The container is capable of maintaining temperature between 018 degrees for up to 30 hours. 2. Advanced Cooling Tech: Insulin cooler travel case employs a unique thermoelectric cooling component or a semiconductor that generates low temperatures with direct current. The generated coldness is then conducted inside the medicine box, and the heat is expelled via a cooling fan. 3. Versatile Storage Solution: Medicine cooler case is perfect for anyone needing to store medicines requiring cold storage while on the go. It is an ideal solution to carry and refrigerate insulin, interferon, growth hormones, eye drops, serum, and other biopreparations safely. 4. Mini and Portable: Made with a stainless steel inner lining and vacuum sealed with welding technology, this case provides enhanced safety for your medications.Its compact design ensures easy portability. 5. User friendly Control: This thermal display control is simple to use, with just three buttons. Specification: Item Type: Insulin Cooler Travel Case Material: ABS, Stainless Steel Temperature Adjustment Range: Plugged in: 0-18. External power source: 4-18 Power Supply: USB powered (home use, portable charger, car use, digital products) Package List:1 x Insulin Cooler Travel Case1 x Car Cable1 x Rechargeable Battery Charging Cable