The FrSara Cool Air Ventilator Neck Fans in Yellow color is a portable ventilation fan designed to be worn around the neck. It features a rechargeable 2400 mah power source and is made of ABS plastic with a plastic finish. The fan is compact with dimensions of 15 inches in width and comes from China. It is ideal for providing a cool and refreshing airflow in indoor environments, making it a convenient for anyone working in the yard, garden, or running or tennis.