【Dual Power Supply for Uninterrupted Cooling】Experience the ultimate convenience of dual charging technology. This innovative fan cap features high-efficiency solar panels that power the fan in direct sunlight, combined with a USB rechargeable battery for indoor use or cloudy days. Stay fresh and cool all day without worrying about running out of power. 【Upgraded 3-Speed and Ultra-Quiet Motor】Customize your personal breeze with three adjustable wind speeds (Low/Medium/High). The integrated fan is designed with an upgraded brushless motor, providing strong and consistent airflow while being ultra-quiet. Enjoy a quiet environment without annoying buzzing when golfing or fishing. 【Precision Airflow and Maximum Sun Protection】The adjustable fan angle allows you to direct the breeze exactly where you need it – to your face or neck. Combined with a wide-brimmed design, this cooling cap effectively blocks harmful UV rays, providing double protection against high temperatures and sunburn during the hottest hours of summer. 【Premium Breathable Fabric and Universal Fit】Made from high-quality, lightweight, and moisture-wicking twill cotton, this baseball cap keeps your head dry and comfortable even in extreme heat. The adjustable hook-and-loop strap at the back ensures a secure and customized fit for most head sizes, suitable for men, women, and even children. 【Perfect Outdoor Companion and Practical Gift】Whether you're golfing, hiking, gardening, or attending a music festival, this fan cap is an essential part of your outdoor gear. It's also a thoughtful and practical gift for parents, outdoor workers, and camping enthusiasts, helping them stay safe and cool during the hot summer months.