1.Diabetes cooler box for insulin 2.4000+12,000mAh lithium battery 3.C/F dua display 4.One ... Lightweight portable. Pocket-sized body, small fine, configuration lithium battery-powered systems, and vehicle power supply connectors, light hands so you ... lithium battery lithium battery to provides(7.4V,4000+12,000mAh) Pharmaceutical product Joyikey diabetes medical cooler box,powered for 16,5hours