High Capacity Rechargeable Battery with Versatile Function: Equipped with a 4000mAh rechargeable battery, this fan delivers long lasting execution for 15 35 hours It can also function as a backup electricity source for mobile devices via the USB port when needed Adjustable Speed Settings & Flexible Positioning: Choose from four different speed levels and turn the fully rotatable fan head to direct ventilation accurately Compact & Portable Design: Weighing just 400g with dimensions of 175x83x175mm, this fan is easy to carry for golf trips, travel, or outdoor excursions, providing quick relief from heat wherever you go Available in white or black Customizable Timer & Dimmable Lighting: Program the timer for automatic shut off or continuous use The adjustable LED light proposals brightness settings from low to high or can be turned off completely Strong Mounting Base: This golf cart fan features a permanent base that firmly attaches to most metal surfaces, providing a stable and compact cooling solution for golf carts, outdoor activities, and camping adventures