The Ecoflow wave 2 is supplied without an additional battery. The hoses for supply and exhaust air are included in the scope of delivery. The Ecoflow wave 2 portable air conditioner can be operated via various power sources, such as the Delta 2/Delta Max & Delta Pro Power Station, a power socket, the 12V car charger or a solar panel (max. 400W). When using an additional battery, a self-sufficient operating time of up to 8 hours is possible.