Digital Handheld Small Fan USB Charging Foldable Portable Mini Portable Desktop Fan Features: Simulate the design of aircraft engine vents to allow wind to converge and form high-pressure airflow. Quickly blowing strong winds, driving away the summer heat and bringing coolness. The new silent circulating fan simulates natural wind to drive away the summer heat and bring coolness. The multifunctional base allows you to enjoy both drama and coolness and freshness , satisfying the experience of different scenes. Small and portable. Put it into the bag pocket without any pressure. The battery indicator light is convenient for you to keep track of the battery level at all times. Product size: 20X11X4.3cm Product Description: size：20X11X4.3cm Including: 1X portable fan Built in battery: Built in battery Built in battery capacity: 2000mAh to 4000mAh (inclusive) Motor type: Brushless motor Number of fan blades: 3 Fan classification: USB fan Noise: below 36dB (inclusive) Rated power: 5 Wind speed gear: 5th gear