This 11x11 feet solar cantilever umbrella guards the comfort of your patio day and night: the double-top design enhances shade and ventilation, the crank handle allows you to adjust the tilt angle at the touch of a button; efficiently converts solar energy during the day, storing it in the removable battery, and illuminates it at night for a romantic ambiance, and the USB-C port ensures easy charging. Equipped with a suitable weighted base, you can make your parasol more stable. Set includes patio cantilever umbrella and base Umbrella： STURDY & DURABLE: Premium Sun Canopy: Flexible Shade Adjustment: Stabilizing Ventilation Design: Integrated Solar Lighting System: Base： Umbrella： Base: