... box is equiping with smart settings, free set up a dual temperature control system, Celsius, Fahrenheit temperature of ... freezing, fans, battery power, temperature control status at a glance. product namevaccine cooler boxproduct typeJYK-Aproduct standardproduct volumeinput ... cigarette lighter to provide.(12V) 2.Home ---- through a small transformer to provide 12V.(12V) 3.Lithium batteries ...