Product parameters Product Name: Refrigerator Size: 22 10 9cm Internal dimensions: 19.2 6.1 3cm Style selection: Lithium battery: Insulin refrigerated box battery 1 Style 1: Battery free frozen insulin box Equipped with insulin refrigeration box host 1, car adapter 1, household adapter 1, USB cable 1, transportation box 1 Style 2: Insulin Refrigerator 1 Battery Equipped with insulin refrigeration box host 1, car adapter 1, home adapter 1, USB cable 1, lithium battery 1, transportation box 1 Style 3: Insulin Refrigerator 2 Batteries Equipped with a host insulin refrigerator 1, car adapter 1, household adapter 1, USB cable 1, lithium battery 2, and transportation box 1 Style 4: Insulin refrigerated box with 3 batteries Equipped with insulin refrigeration box host 1, car adapter 1, household adapter 1, USB cable 1, lithium battery 3, transportation box 1 Precautions for use 1. The refrigerator should not be filled with water to avoid contact with IDS body flu. 2. It must be aligned with the ventilation hole of the backpack. It is strictly prohibited to put this product in a sealed bag. This will lead to poor ventilation, increased machine temperature, and damage to medication. 3. When going out, prepare a reasonable number of batteries according to the travel time to ensure the normal use of the machine. 4. When using an external power source for a long time, remove the lithium battery to avoid overload or leakage.Large capacity: The insulin refrigerator can accommodate 3 to 5 injection pens or 15 to 20 insulin filling pens (can also be used together with injection pens and filling pens), suitable for insulin, interferon, eye drops, growth hormone, etc. It can be used at any time. A machine with four functions: The refrigerator can use four power supply methods: mobile power 220V household plug car charger built-in lithium battery. Easy to operate: The insulin ice storage box adopts a high-definition LED screen, making it easy for the elderly to operate The portable insulin refrigerator adopts intelligent constant temperature technology, which can cool or heat and maintain the set temperature. Lightweight and lightweight: The palm style insulin cooler is exquisite and compact, handheld, allowing you to enjoy endless portable life. Long term standby mode: The 10200mAh lithium battery in the portable insulin refrigerator can last for 8 hours and can be connected to a mobile power source.