Portable fan is with high-quality brushless motor provide huge blowing area and higher speeds under extremely low noise.Even if it's in a quiet reading room will not disturb you.Wearable fan, feel cool anytime, anywhere.Our Portable Fan has a built-in 1200mAh rechargeable battery.Equipped with a USB charging cable, you can easily charge your mini USB fan.Rechargeable personal fans are not limited to handheld use. It can also as a neck-hanging fan, which can cool you down when your hands are working.