Thanks for choosing our portable cooler box (more properly called a "Medication and Insulin Refrigerator"). By adopting the technology of most professional high-tech semiconductor refrigeration and heat prevention, with a simple and elegant design, our products can create high-quality, comfortable life for person need medication cooling when travel. Medication and Insulin cooler Refrigerator is designed to provide a convenient. Most people prefer privacy for their insulin storage, rather than placing it in a shared refrigerator. LED large screen display, intelligent constant temperature, simple operation and convenient use, the elderly can easily use it, this will be a perfect gift. Precautions: 1. When using external power for a long time, please take out the battery, over-charging and leaking. 2. If it is not used for more than one week, please take out the battery to prevent over-discharge. 3. Do not use for a long time, charge the battery once every three months to prevent over-discharge. [product specifications] Humidity Range: 2?- 8? Product net weight: 1.2kg Car input voltage: 12V Household voltage: 100 220V Power:10W Box Contains 1 x Medical Refrigerator 1 x Handbag 1 x Lithium Battery 1 x Car Plug(With USB Cable) 1 x Household Power Cord Delivery time is generally 10-15 days. If you do not receive your purchase information within 30 days, please contact us in time. If you have any questions, please contact us in time.?Applicable to multi-drug refrigerators?Insulin, interferon, eye drops, growth hormone, commonly used drugs, serum reagents, 80 cooling space, can store 3-5 injection pens. ?Power supply method?charging treasure, car, house, cigarette lighter, computer USB interface, battery can provide power, suitable for transportation and portability, most people prefer to protect the privacy of insulin, instead of putting it in the ordinary refrigerator. ?Ultra-quiet operation?Brushless high-end fan, running below 30 decibels, quieter and more durable, suitable for personal space, such as office, travel, car. ?Intelligent working system?HD LED display effect, fast cooling, smart battery, when the refrigerator temperature reaches the set temperature, switch to the energy-saving mode, effectively protect the motherboard and extend the service life. ?Affordable Small Refrigerator?The insulin refrigerator is designed to provide a convenient and economical way to keep drugs (such as insulin or other injectables and drugs) at a safe temperature.