The EcoFlow DELTA Max Extra Battery Cover maintains the DELTA Max Extra Battery&&';;s ease of use while protecting it from water, debris and damage while on the move. Highlights: Made from lightweight, waterproof, and wear-resistant material that protects DELTA Max Extra Battery from weathering or on-the-go knocks and scrapes. Designed to protect while ensuring easy access to the machine itself. In the Box1 x EcoFlow DELTA Max Extra Battery Cover * This Cover is applicable for all regions and not restricted to the types of its outlets.