Powerful Airflow and Long Battery Life: The fan has 2 speeds which puts out quite a bit of airflow and a nice breeze; 1800mAh battery life lasts a long time, Fully charge 2.5 hours and run 14-21 hours; The blades are soft and safe 1800mAh Power Bank Fuction: This 2-in-1 fan can work as a power bank in an emergency; It comes with a 1800mAh rechargeable battery and 5V/1A usb output port, so you can charge your phone, laptop, MP3 or other things with it in a pinch Foldable Handheld and Desk Fan: The mini portable fan is super compact, lightweight and portable; Folding size: 4.47*1.41*1.45in, Weigh: 4.2 oz; It's a handheld fan when it is unfolded 180, and a desktop fan when it is unfolded 90 or 270