Battery and USB Powered Fan: This fan has a dual power source, operating on both batteries and USB. It doesn't take up much space and features a convenient foldable design for easy storage and transport. It's perfect for the office, dorm rooms, hotel rooms, cruise ships, and summer camp. Durable Construction: For long-lasting strength and use, this fan is expertly crafted with a durable plastic construction and a patented fan blade design that extends battery life while maximizing airflow. The fan tilts, providing adjustable and directional personal airflow. Two-Speed ​​Operation: To suit your needs, the fan features both high and low speeds. It operates quietly at both settings to keep you cool while making minimal noise, so you can work, read, or relax without distractions. Easy to Use: The fan operates on four AA batteries (not included). To install, slide the battery door open, insert the batteries according to the (+/-) markings, and then replace the door. Slide the switch located on the side of the fan to your preferred setting. If the fan does not work, check that the batteries are installed correctly. The fan grill protects your fingers from the blades during use.