Airdog 11.65-in 12-Volt 12-Speed High Velocity Indoor/Outdoor Black Oscillating Floor Fan with Remote F10

Quiet and Soft to Strong Airflow: Brushless DC motor works smoothly with the 9 blades, bringing broad airflow while reducing working noise to as low as 19dB, and can adjust the wind speed in 12 levels from very soft to strong Rechargeable Battery Powered: Built-in 8000Amh rechargeable battery, this pedestal fan can be fully charged in 3.5 hours with the included micro USB cord and provide 2-25 wireless working hours on a full charge With its unique foldaway design, it can be collapsed as small as 12′ x 12′ x 7 inch to fit in your backpack or drawer easily without taking up too much room, while up to 31.26 inch high when extended; Ideal for storage or using on desktop,backpack, etc