Mini Portable Small Refrigerator Insulin Medicine Refrigerator Box USB Rechargeable Car Refrigerated Box Feature: 1. It can achieve a good heat insulation effect, keep insulin in a safe and cool environment, and can maintain the degree of 8-12 hours. 2. Small size, convenient to travel with insulin, energy saving and environmental protection. 3. This insulin box is made of environmentally friendly materials, durable and waterproof. Product Specifications Material: Stainless steel Dimensions: 21.5 14 6cm Inner size: 18.5 10 3.7cm Weight: 2kg Power: 15W Voltage: 11V Battery capacity: 10200mAh(package included) Temperature: 0 18? Package includes 1 Insulin coolerNotes on insulin: The large capacity can store 3 insulin pens. Unused insulin can be stored at 35.6-46.4 F for 2-3 years. Used insulin can be stored at 30 C for 6 weeks. Multi-function: it can be used as a small refrigerator for food preservation, and also as a low-temperature medicine storage box. USB cable,wall charger,power bank, car, home, storage battery can be used, suitable for travel, home, commuting, business trip and office. Big inner size: 7.08 4.17 1.57 in. Can put in 6-9 insulin pens, or 25 bottles,or 60 refills.Cold storage temperature: 2-8?(35.6-46.4?, operating temperature below 25?(77?)If the room temperature over 25 ?,the case can t cooler below 8?. Alarm reminder: high temperature alarm, low temperature alarm, low battery. Large capacity battery: long standby time. Replaceable battery design. Lightweight and portable, the LCD screen displays the time and temperature, the operation is simple, just press a button to work, and the elderly are also easy to operate.