Insulin mini refrigerator USB refrigerator portable constant temperature charging LCD screen refrigerator features: 1. Insulin refrigerated box, low noise design, working noise does not exceed 30dB, providing you with quiet sleep. We have equipped you with a portable backpack. You can install a medication refrigerator in your backpack to protect your privacy. 3. Insulin refrigerated box, low battery warning, large LED screen, sensitive adjustment, intelligent temperature regulation, aluminum inner liner, to prevent air conditioning loss. 4. Insulin, eye drops and other medications can be placed, suitable for travel, family, work, business travel, etc. Specifications: Product Name: Portable Refrigerator Box Temperature control inside the box: 2-8 ? Internal dimensions: 186 x 110 x 35mm External dimensions: 240 x 160 x 125mm Built in battery: single battery 10200mah Battery life: approximately 12 hours Style: A: No battery, B: 1 battery Packaging list: Portable insulin freezer x 1 Note: 1. Due to different monitors, there may be color errors in the product. Please understand! 2. Due to different manual measurement methods, there may be errors in product dimensions. Please understand!(Multiple charging methods): It can be powered by a USB power supply, just like a mobile phone. A 10200 milliampere hour lithium battery can be added, with a battery life of 12 hours. Suitable for use in cars, offices, family travel, outdoor vehicles, and airplanes. (Ultra quiet operation): Insulin cooling box, with a noise level below 30 decibels during normal operation. It has quieter and more long-lasting functions than ever before, allowing you to enjoy peaceful and comfortable sleep. (Cooling): The insulin cooling box can be configured with the desired target temperature, fast cooling performance, and intelligent temperature control system to keep the medication at a safe temperature, with touch button operation. (Capacity): The internal space is large enough to accommodate 75 or 36 bottles of insulin or 11 injection pens simultaneously. Insulin requires a separate refrigeration space, making it convenient to carry when going out or traveling. (Insulin Refrigerator): Portable insulin refrigerators solve the problem of refrigerated medication when going out, and can keep medication (such as insulin eye drops) at a safe temperature.