Freeman is a power supply and energy storage product for home emergency and outdoor leisure applications. The product can be applied to natural disasters, sudden power failure use; Or the house garden around the grid line is not laid out, can be used to power the product. Also can be outdoor activities camping, outdoor Party needs power supply equipment. The purpose of the design is easy to carry and convenient collection and display, so the design of a hidden handle. Product design takes user safety as the main consideration, and designs safe circuit performance and battery Pack. V0 grade fire retardant material is used. The industrial design takes into account the rugged, crash-proof design and the scratch-resistant texture of the exterior surface.