Feature: 1. Spacious and Temp Controlled: Insulin pen cooler case is designed to satisfy all your needs by accommodating roughly 5 insulin pens, 8 growth hormone bottles, or 9 interferon bottles. The box ensures that insulin maintains a temperature of 0‑18℃ for up to 30H. 2. Diabetic Insulated: Encased in a stainless steel inner shell and featuring vacuum insulation and welding sealing technology, the box provides enhanced safety and portability. It is perfect for regular travelers, fishing trips, hiking excursions, and weekend camping. 3. User Friendly Digital Control: Featuring a digital temperature display and only three buttons, this cooler box is easy to use making it elderly friendly. Now, maintaining the required temperature for your insulin has never been simpler. 4. Advanced Cooling Technology: Medication cooler box employs a thermoelectric cooling unit, or semiconductor, to achieve refrigeration. It uses direct current to lower the temperature and conduct it to the medicine box, efficiently dissipating heat through a cooling fan. 5. Carry Bag: Included with the cooler box is a carrying bag that protects against scratches and damage, maintaining the integrity of the device. With this to go pouch, keeping your insulin and other medicine substances cool while outdoors is easier and more convenient. 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) Suitable Places: Home, office, vehicles, pharmacies, hospitals, and anywhere else. Suitable for refrigeration: Insulin, interferon, and other drugs and biological agents that require refrigeration. . Package List: 1 x Insulin Cooler Travel Case1 x Car Cable1 x USB Cable1 x Carrying Bag1 x Carrying Bag Specialize Short Line