Insulin Cooler Case Miniature Medicine Refrigerator 0‑18 Degrees Celsius Portable Diabetic Cooler Box with LED Display for Travel Home Office Item Type: Insulin Cooler BoxMaterial: ABS Built in Battery: 10600mAH lithium ion battery Temperature Control Range: 0-18℃ Main Unit Rated Voltage: DC5V Main Unit Rated Power: 10W when connected to external power supply, 5W when connected to battery Refrigeration Room Capacity: 8 insulin pens or 28 bottles of insulin medicine, or 62 insulin pen cores Power Supply: USB cable connection to adapter, power bank, car USB port, lithium battery, etc. Applicable Places: Travel, home, office, vehicle, pharmacy, hospital, etc. Suitable for Refrigeration: Insulin, interferon, and other drugs and biological agents that require refrigeration Product Principle: This product uses semiconductor temperature difference cooling components to achieve refrigeration. Direct current generates low temperature on special semiconductors, conducts it into the medicine box, and dissipates heat outside through the radiator and fan. Product Features: Multiple power supply methods including AC power supply, USB power supply, built in battery, power bank, etc.; intelligent temperature control, large screen LED temperature display, semiconductor instant cooling technology, stable performance, long lifespan, no noise and fluorine no pollution, small size, light weight, easy to carry, a new type of green and environmentally friendly product.