No 5. Penkou Portable Neck Fan.
If you want hands-free cooling, the Penkou neck fan is my pick because it’s lightweight, comfortable, and designed to cool quickly with a 360° air outlet. It stays ultra quiet (under about 20 dB) and gives you three speed modes for different needs. With a 4000mAh battery, it can run roughly 3 to 16 hours depending on speed, making it great for travel, work, or outdoor activities.
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