【Solar-powered dual-fan cooling】This solar-powered fan hat features dual mini fans built into the brim, equipped with two 800mAh batteries, supporting both solar and USB power supply. It boasts a maximum battery life of up to 16 hours, allowing you to easily cope with the scorching summer heat and providing an instant cooling experience. 【Wide Brim for Comprehensive Sun Protection】The 4.72-inch wide brim effectively shields the face and neck from UV damage, keeping you dry outdoors. This solar fans for outside uses a monocrystalline silicon solar panel, which efficiently absorbs solar energy, allowing it to charge while you walk, making it environmentally friendly and energy-saving. 【Comfortable and Breathable for All-Day Wear】The hat body is made of breathable cotton/polyester blend fabric with a built-in sweatband, offering excellent moisture-wicking and waterproof performance. Lightweight and breathable, it keeps you feeling cool even after long periods of wear. 【Ideal Choice for Various Outdoor Activities】Whether it's outdoor golf, hiking, cycling, fishing, or a beach vacation, thishat with fans solar power meets your needs. Hands-free design allows you to easily enjoy outdoor activities. 【Adjustable Design】Equipped with an elastic drawstring and adjustable back strap, it fits most head shapes and is suitable for both men and women. The entire hat weighs only 114 grams and features detachable fan blades and a smart speed control chip, ensuring comfortable and safe wear and easy cleaning. 【Solar Dual Fan Cooling】The brim has built-in dual mini fans that blow directly on the face, bringing an instant cooling experience. Equipped with two 800mAh batteries, it supports dual power supply from solar energy and USB, with a maximum battery life of 16 hours, no need to hold it, and can easily cope with the hot summer. 【Full Coverage Sun Protection】Equipped with a 4.72-inch widened brim, it effectively covers the face and neck and blocks UV damage. It uses a single-crystal solar panel to efficiently absorb solar energy, charge while walking, and is environmentally friendly and energy-saving. 【Comfortable and Breathable All-Day Wear】The hat body is made of breathable cotton/polyester blended fabric, with a built-in sweat-absorbing belt, which has excellent moisture absorption and perspiration and waterproof capabilities. It is light and breathable, and remains refreshing when worn for a long time. 【Ideal Choice for Multi-Scene Outdoor】Whether it is golf, hiking, cycling, fishing or beach trips, it is your close-fitting cooling equipment. The hands-free air supply design frees your hands and allows you to easily enjoy outdoor activities. 【Adjustable Design】Equipped with an elastic adjustment drawstring and an adjustable back strap, it is suitable for most head shapes and is suitable for both men and women. The entire cap weighs only 114 grams and is equipped with detachable fan blades and an intelligent speed regulation chip, making it comfortable, safe and easy to clean.