See how the Phefon 10L Medical Cooler Box can bring practical value to your critical medical transport tasks. In this video, we demonstrate how this temperature-controlled container, featuring a built-in thermometer and six 0.4L ice packs, reliably maintains a cold chain for 24 to 48 hours. Watch as we showcase its durable PP construction, high-density PU foam insulation, and proper usage steps to ensure your vaccines and sensitive supplies remain safe and effective during transit.