The Jisulife JESIRF8100BN 3in1 Handheld Mini Fan is a versatile and convenient portable fan perfect for both indoor and outdoor use. With a power source of USB or battery, this mini fan comes in a stylish brown color with 2 different speeds for customizable airflow control. The fan is easy to operate with a push-button or touch control style, and its rechargeable feature adds to its convenience. With an air flow volume of 3300, this fan is suitable for use in any room and has a quiet operating sound rating of 40 dB. The Jisulife brand ensures quality and reliability in this compact and handheld fan model.