The EcoFlow River 2 MAX Portable Power Station with 500W AC output & Built in 512Wh is a high-capacity, versatile, and portable power station that provides reliable power for various electronic devices and appliances, both indoors and outdoors. With a 500W AC output and a built-in 512Wh lithium-ion battery, it offers a range of features that make it a convenient and efficient power source for a wide range of applications.