¡Gracias por visitar nuestra tienda DSI ! Estamos encantados de que hayas venido a ver nuestros productos, no olvides utilizar el área de preguntas si tienes dudas. The portable fan is very suitable for personal cooling, offices, churches, outdoor activities, such as camping, traveling, hiking, climbing and watching sports games, etc. ong Battery ife. Builtin lithium battery of 800mAh allows 6 hours max. of working at the first speed. 3 hours of charge to the full will continuously cool you off for 26 hour Wide Range of Uses Mini USB fans are easy to carry and easy to store, and truly handsfree neck band fans. Indoor activities are great outdoors! It is an item which works in every scene such as summer festival, outdoor, BBQ, sports watching, walking, climbing, excursion, festival, commuting, and school. Summer can be used as an electric fan. You can enjoy clean and comfortable air.