This portable fan is characterized by low noise and impressive endurance. You can use this fan in the office or library without disturbing others. This fan is charged using a USB port, and when fully charged, you can carry this fan with you and use it anytime. Keep the fan in your backpack or handbag and use it to cool down when you feel hot. Features -Color: Black -Material:Plastic -Size: 13.50X13.50X5.00cm/5.31X5.31X1.97in -Power supply: USB charging -Battery capacity: 2000 mah /3.7v -Input: 5V-1.0A -Number of speeds:3 - Cordless design: The fan can be charged through its USB port, can use it without the annoyance of cords. - Adjustable speed: You can choose different speed modes from gentle to cooler, meeting your various needs. - Portable: This small desk fan is lightweight and easy to carry, suitable for outdoor use, like travelling, camping, parties. - Low noise: With its low operation noise, you can rest assured that it won't disturb other people around you, even in a library. - Sleek appearance: The fan has a sleek and adorable appearance, giving you a modern look and adding a touch of elegance. Package list: 1 x fan 1 x charging cable