Features: Experience powerful cooling with this fast speed waist mounted fan featuring 100 adjustable speeds and turbocharged airflows for relief in any environment. Crafted from lightweight ABS, its ergonomic waist clip design enables portability while optimized airflows channels ensures quiet operation at 25dB. Ideal for commuters, outdoor activity enthusiasts, and users seek own cooling solution during activity or sensitive sleep environment. Perfect for hiking, crowded rides, or bedside use where quiet airflows and 12 hour 4000mAh battery matter most. Combines industrial durability with ABS construction, delivering hospital quiet performances that outlasts traditional plastic fan in heatwaves challenge. Specifications: Component: ABS Size: Approx. 3.5x2.68x2.05inch(89x68x52mm) Capacity: 4000mAh Input and Output: 5V/1A≤5W Gear: 0-100Gear Package Includes: 1x Small Fan 1x Data Line 1x Manual note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.