Feature: Generous design, convenient to carry. LED lighting and magnifying glass help user observe the scale. Full charged built-in battery and external battery can ensure the Insulin Refrigerator continuously work around 12 hours. Uses the principles of semi-conductor refrigeration, CFC free, Stable work, long life time, and cryogenic freezing. High definition on color LCD screen, intelligent display and control system, button design for convenient operation. Keep the inside temperature 2-8℃ under ambient 25-30℃. Specification Wide voltage power adapter (AC110V-240V) or car power (DC12V). Refrigeration temperature: 2-8℃ ( under ambient 25-30℃ ). Power rating: 8.6W. External Dimensions (L*W*H): 195mm* 80mm* 75mm. Internal dimensions (L*W*H):169.5mm*46mm*19.5mm Weight: 660g Certification: The product approved by CE.