This cooler provides efficient cooling for your food and drinks for up to 42 hours without needing to be plugged in. It features a detachable battery with a 299Wh capacity. Its portable design includes durable wheels and an easy-to-use handle, so you can take it wherever you go. With Anker EverFrost, you have various charging options, including from your car, home, or even solar power. You can also charge electronic devices through the built-in USB-C and USB-A ports. It cools quickly from 20°C to -20°C in just 30 minutes!