HANDS FREE COOLING -Treva&';s 5-inch portable clip on fan features a fan clip that makes it easy to attach and secure to strollers to your bed to car seats to desks. CONVENIENT BUILT-IN CLIP - The fan with clip head rotates and pivots for adjustable and customized airflow to keep you cooler on-the-go, camping or hanging around the house. SLEEK AND LIGHTWEIGHT DESIGN - Treva&';s innovative slim and lightweight small fan makes it easy to store in bags, luggage or backpacks - and works great for kids and adults. SMALL AND MIGHTY - Our patented fan blades and design provide two powerful speed, optimal airflow with less power, and up to 14 hours of refreshing cool airflow. BATTERY POWERED - Treva&&';;s clip fans operate with 4 AA batteries (not included) making staying cool much easier.