The mini fan with removable cap will keep you cool in the sweltering heat.Built-in USB charging port, the fan can be used while charging, strong wind and low noise.Powered by rechargeable 2600mA lithium battery can output as a power bank.Safety design. Fan blades are made of soft PVC material to prevent the hands from injuring.Mini size with ergonomic design, portable and easy to store.Mobile handheld air cooler, great personal fan for outdoors and travelling.Please call for more details.