Fan Light Sound USB Charging Fan Student Office Home 2000mAh Features: Battery and USB charging fan: The fan has a built-in battery power supply and USB charging fan, with a built-in 2000mAh battery. It has a long working time and is a portable fan suitable for camping, travel, and other work. You can also plug it into a power source to work continuously. Super Silent Fan: Unique upgraded blade design. The minimum noise of this desk fan is close to 36dB. This mini fan is quiet enough, but still strong enough to bring cool wind and provide you with a comfortable working environment. The perfect choice for work and study. 5-level adjustable wind speed and low voice: The speed of this desktop built-in battery fan can also be adjusted between 5 level according to your needs. It is generous and quiet, ensuring a calm motion of gas that is sufficient to meet needs. Packaging content and customer service: You will receive a built-in battery fan and a USB cable. Brushless motor and 8-inch fan blades: Brushless motor has a lower sound airflow. The 8-inch fan blades will bring more wind to you, with a gentle feel and no headache even after blowing for a long time. 4-15 hour battery life: The fan is equipped with a 2000mAh large battery inside, providing a battery life of over 4 hours. Product Description: Fan blade size: 10.49 inches Speed regulation: 5th gear Battery: 2000mA Motor type: Brushless motor Fan blade material: plastic Noise: below 37dB Power: 10W Voltage: 5V Range: 4-15 hours Including: fan * 1, charging cable * 1 Size: 6.49 * 5.31 * 8.66in 【Multifunctional angle adjustmentl】Experience the refreshing airflow from all directions. Our fans have a swivel feature that allows you to adjust the angle to your desired position. No matter where you are, whether far or near, high or low, you can enjoy the coolness. 【Speed Selectable】Our fan features three speeds, allowing you to choose the airflow to your preference. Whether you prefer a gentle or strong gusts, our fans have you covered ensuring ultimate comfort. 【Compact and Stylish Design】Our desktop fan not just provides excellent performance, also adds elegance to your space. Its sleek and compact design makes it perfect for any environment, whether it's a desk, bedroom or living room. Stay cool and stylish with our desktop fan. 【Convenient USB charging】Say goodbye to the trouble of replacing batteries. Our fan comes with a USB charging port so you can easily charge it using your computer, power bank, or any other USB-enabled device. Stay calm and never worry about running out of battery again!