【App Control, LCD temperature display with built-in light 】: This car refrigerator features app control, allowing remote operation from both Android and iOS phones, making your journey easier and more enjoyable. This car refrigerator also features an LCD temperature display and a built-in light, allowing you to quickly and accurately check the contents of the fridge.【Upgrade to Wireless Use】Our electric cooler also supports wireless use without plugging in. You only need to purchase a 15,600mAh removable lithium battery (sold separately, providing up to 6 hours of use when fully charged) to enjoy a wireless design on your outdoor trips, without the need for an external power source, keeping your items cooler for longer. If you don't need the battery, the unique battery compartment space can also be used as a multifunctional storage box.【Wide Application】: You can choose a 12/24V DC power supply or a 100-240V AC power supply. This car refrigerator is suitable for use at home or on various vehicles, such as SUVs, Trucks, RVs, Camper, Van, Boat, etc, meeting a variety of usage scenarios. Also supports detachable batteries (sold separately) and generators (sold separately). By installing a dedicated battery, it can be used even without a power source.