Specification:Item Type: Mini Insulin RefrigeratorMaterial: ABS, acrylic, electronic componentsBattery: 1pc NCR18650B lithium battery pack (not included)Temperature Adjustment Range: 0-18℃Voltage: 5V 3.4A.Power: 10WMain Machine Size Of Refrigerator: Approx. 210 x 95 x 103mm / 8.3 x 3.7 x 4.1inRefrigeration Room Size: Approx. 175 x 60 x 25mm / 6.9 x 2.4 x 1inRefrigeration Room Capacity: 3-5 insulin pens or about 10 insulin pens can be put.Power Supply Mode: USB cable connection adapter, charging treasure, car USB interface, etc.Product Principle: This product uses thermoelectric refrigeration components, that is, semiconductors to realize refrigeration. On special semiconductors, low temperature is generated by direct current and transmitted to the medicine box, and the heat is dissipated by the radiator through the fan.Product Characteristics: Intelligent temperature control, LED liquid crystal display, semiconductor instantaneous refrigeration technology, stable performance, long life, low noise and no fluorine pollution, small size, light weight and easy to carry.Package List:1 x Mini Insulin Refrigerator 1 x Handbag1 x USB CableNote:1. The refrigerator can not contain water to avoid liquid contact;2. The ventilation holes at the bottom and both sides keep the air smooth, and the cooling holes must be aligned with the cooling holes of the backpack when the portable backpack is installed. This product is strictly forbidden to be put in a sealed bag, which will cause poor ventilation and the temperature in the machine will rise and damage the medicine.3. When