O2COOL 5" Battery Operated Clip Fan - Adjustable, Rotating, Tilt & Swivel Feature Portable Fan | AA Battery | 2 Speed | for Camping, Outdoors, Travel, Office Desk & Dorm Room Requires 4-AA batteries (not included, Best with Polaroid AA Batteries) 5-Inch, 2-Speed Fan Fan head rotates and pivots to direct airflow Clip allows you to use fan almost anywhere Battery Run Time: 14 hours (low) 11 hours (high)