Adjustable Airflow: With 100 speed settings from 0 to 100, and a 180-degree tilt adjustable stand, you can customize the airflow to your preferred level and angle. Ultra Quiet & Powerful: The portable fan rechargeable is equipped with infinitely adjustable speed and silent design. The office fan is quiet and the sound is under 30 dB. 30 decibels is the sound level heard in the quietest environment. There is no problem using the travel fan while sleeping. Compact Portable Size: The travel size fan is , weighing only 0.54lb. The length of the portable fan is 6.8 inch and the width is 5.7 inch. The lighter and thinner design of the small desk fan makes it convenient to fit into any bag, which is really a travel essentials. You can take it with you when going out, or use it in the office, bedroom, kitchen, camping, travel, etc. Just enjoy the anytime, anywhere. Rechargeable Desk Fan: This portable fan rechargeable is equipped with a built-in upgraded battery for extended working hours,