180 FOLDABLE ANGLE: Thanks to its foldable design, the fan can be adjusted to an angle of 180. It can be used not only as a manual fan but also as a table fan. You can adjust the angle as needed, then enjoy the cool wind without worry. POWER BANK FUNCTION: The battery can be used as a portable power bank. If you're going on a trip or excursion, you can use the power bank to charge your phone or laptop in case of an emergency. EASY TO CARRY: Its foldable design allows the fan to take up less space . This makes the fan easy to carry, easy to carry in a handbag. 1. The USB fan can be used as a table fan. 2. Only 4 hours full charge, the quiet fan can work up to 16 hours. 3. Multifunctional design for office, stroller, camping, bed. 4. Foldable and mobile, mini size, light weight, can be taken anywhere. 5. The brushless motor makes the fan strong and durable. 6. Rechargeable and replaceable 4000mA 18650 Li-ion battery, can be charged by USB charger, computer, power bank.