Portable Cooling Solution: Stay cool and comfortable with our innovative Hard Hat Fan; Enjoy 3-speed adjustments (low/medium/high) for personalized airflow; Ideal for outdoor activities in the summer heat, ensuring a refreshing experience. Powerful Motor Performance: Experience exceptional ventilation with a high-power motor that delivers strong airflow; Efficiently circulates air within your hard hat, enhancing comfort and reducing heat buildup; Stay focused and productive in any environment with this reliable cooling companion. Head-Mounted Convenience: Embrace the freedom of movement with our portable head-mounted fan; Designed to fit most helmets seamlessly, providing hands-free cooling wherever you go; Lightweight and ergonomic design ensures maximum comfort during extended wear. Long-Lasting Battery Life: Benefit from a large-capacity battery that powers your fan throughout the day; Convenient power display keeps you informed about the remaining battery life, allowing you to plan your usage effectively; Say goodbye to interruptions and enjoy uninterrupted cooling. Easy Installation Process: Effortlessly install the hard hat fan on your helmet for instant relief from heat stress; Compatible with various helmet styles, making it a versatile accessory for outdoor enthusiasts and professionals alike. Item Name: Helmet Fan Material: Plastic 3-speed Speed Adjustment: Low/Medium/High Battery Capacity: 2600mAh Features: Strong Wind, Adjustable Band, Portable Size Details: L: 17.1cm/6.73", W: 13.9cm/5.47", H: 8cm/3.15" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Helmet Fan 1 x USB Cable