The Ultra1 handheld fan from Jisulife has a lightweight design that makes it extremely portable anytime, anywhere, and a surprising airflow of 19m/s. This fan has adjustable speed settings, a built-in 9000mAh rechargeable battery, built-in LED light for emergency illumination, and aviation-grade aluminum alloy blades and body. Measures 5.31” x 2.95” x 1.49”.