- Powerful Cooling Performance : This portable handheld fan features a built-in helical fan with a large inclination angle, ensuring stable operation at high speeds to deliver a strong cooling effect when you need it most. - USB Rechargeable Convenience : Equipped with a robust 4000mAh battery, this fan offers long-lasting use. Recharge it easily with the included USB cable from any standard outlet, computer, or USB-enabled device. Enjoy up to 3 hours of cool comfort. - Innovative Cold Compress Function : Utilizing semiconductor refrigeration technology, this fan cools in just 3 seconds. Its unique cold compress feature can be applied to any part of your body (except hair) to provide instant relief. Perfect for lowering skin temperature during workouts or reducing swelling. - Essential Handheld Design : Ideal for use at home, office, or on the go, this handheld fan helps you beat the heat without the discomfort of sweating. Its portable design allows you to carry it easily, ensuring you stay cool wherever you are. Use Scenarios : 1. Outdoor Activities : Perfect for picnics, sporting events, or hiking, keeping you refreshed in the heat. 2. Office Use : Use at your desk to maintain comfort during warm days, eliminating the embarrassment of sweat stains. 3. Post-Workout Relief : Quickly cool down after exercising by applying the cold compress feature directly to your face or other heated areas. With its powerful cooling capabilities, rechargeable battery, and innovative features, this handheld fan is designed for practicality and comfort in any situation.