Small and Foldable - This portable small personal fan is foldable design, 180 degree adjustable on the table. Folding size only 3.35*3.15 inch, you can easily put it in your pocket, backpack, etc. Can be used as a portable fan, mini desk fan or handheld fan. Perfect for home, bedroom, office, school, office, camping or travel use. Hands Free Design - This neck fan with detachable and adjustable lanyard. You can hang it around your neck, free your hands for shopping, hiking, playing at the beach, traveling, etc. Power Bank Function - 3000mAh rechargeable battery fan, port 5V/1A USB output. It is not only a mini hand-held fan, but a practical power bank, which can charge your phones in emergency. Phone Holder - The hidden cell phone holder function is very convenient. You can enjoy cool while doing your own things when you are at work, meeting or watching dramas at home. Strong wind and low noise - This lovely portable fan with 1000mAh batteries large capacity provides 6-12 hours working time (depending on different speeds). It can adjust 3 wind speeds at will to meet all your needs, just press the power button to change the wind speed setting.