This Portable Handheld Personal Necklace Mini Fan is multi-function, it with USB charging and mobile phone bracket function.This small fan has 3-level wind setting to adjust the wind speed.Giving you a comfortable cooling experience in hot days. You can put portable fan in your pocket or bag, also can wear this fan on a lanyard around your neck. You can hold it at hand, hang it on your neck with a lanyard (included), frees your hand when you need to hold a phone and other stuff. Besides, you can also fold it and put on the table as a desk fan, with a rotation of 180 degree. The fan is equipped with 3000mAh battery, can last for 3-14 hours as fan function.