... cooler box 2.4000+12,000mAh lithium battery 3.Dual termperature LCD display 4.One key ... Pocket-sized body, small fine, configuration lithium battery-powered systems, and vehicle power supply connectors, ... dual temperature real-time display; refrigeration, freezing, fans, battery power, temperature control status at a glance. Specification of ... cooler box with 16,5hours lithium battery,CE approved