"The Treva Portable Fan with AC Adapter is the perfect way to enjoy a cooling breeze, no matter where you go. This Treva Portable Fan has a powerful 2-speed fan that runs on AC power or 6 D-cell batteries (not included). Ideal for camping or picnics, this battery operated fan has a 10 blade, stable horseshoe base, and tilts for directional airflow. Treva fans fold for carrying with built-in handle. The Treva Portable Fan with AC Adapter operates up to 40 hours on battery power.Manufacturers model #: FD10101A . Dual power via AC adapter (included) or 6 D-cell batteries (not included) Powerful 2-speed motor and 10"" blade Stable base tilts to direct airflow Easy to fold, store, and carry Great for camping, tailgating, or other outdoor uses"