About this itemNo ice needed for cooling anymore! Anker EverFrost Powered Cooler 40 can keep cool up to 35.8 hours with a 299Wh detachable battery intergated. It can cools down in 30 mins with a long-lasting, fast and quiet refrigeration under 42dB. Wheels and handles are designed and included by default for portable use. Plus, it can be recharged from solar. Your choice for outdoor camping and family roadtrips. Features