【Two Power Sources】-Longer working time. Rechargeable battery or USB charging. The battery needs about 3 hours for a full charge. This USB desk fan is also USB powered for indoors such as PC, laptop or power bank. 【NEW VERSION CLIP ON FAN & DUAL-USE USB DESK FAN】-Unique base design of the upgraded version, the USB fans desk can be placed on the desk or clipped to your desk and headboard securely, with a strong clip that fits boards less than 5cm. 【SUPER QUIET & 360 DEGREE ROTATION】-The brushless motor for this mini USB fan makes the fan very quiet when working. You can sleep comfortably without the noise disturbing you. Supports 360 degree horizontal and vertical rotation, adjust the wind direction with 360° up and down, left and right adjustment, you can enjoy the cool wind from all directions. 【3 ADJUSTABLE SPEEDS】- The quiet USB desk fan has a single toggle switch, making operation simple and flexible. 3 modes from strong wind breeze, speed 1 is the weakest wind, speed 2 is medium,
