[Pocket Fan & 2-in-1 Power Bank] It is not only a handheld fan, but also a 5200mAh power bank. You can take it anywhere, perfect for outdoor activities like attending concert, watching NBA/World Cup/football games, camping, boating, traveling. [Foldable Design] Adjust the angle manually from 0 to 180 for easy carrying. Perfect for outdoor, travel, fishing, barbecue, ball game or concert. [Strong airflow and 3 speeds] Adopted 3 small fan leaves + 3 big leaves by design, its wind speed can reach 5m/s. The speed is up to 3600rpm at 3rd gear, so it can generate strong airflow and cool you down in seconds in hot weather. [Long-lasting battery] The rechargeable lithium battery Built-in 5200mAh battery helps to offer a long working time of 5-20 hours after fully charged.And it's easy to charge with any USB-enabled devices, like power bank, USB outlet, PC or charger car, etc. It is suitable for long time outdoor use in summer, dormitory camping tent outdoor activity. [Multifunctional] Hand-held fan 5200mAh power bank Mini desktop fan Hanging fan: has two loops V-shaped, hang it on your stroller umbrella, etc.