10″ portable fan is perfect for indoor and outdoor activities. Use in a hot office or school, on a picnic and especially during a power outage. This fan features dual power sources using either plug-in with the AC adapter (included) or use 6 D-Cell batteries (not included). It also has 2 speeds, convenient built-in handle, and up to 40 hours of battery life. Measures approximately 4″ x 11.75″ x 13″.