- Ultra-quiet operation: This rechargeable hand-held fan operates at a noise level of less than 15db, ensuring a peaceful environment. With 6 adjustable speeds, you can gradually increase the wind from levels 1 to 5, while the 6th speed simulates natural breezes for optimal comfort. Perfect for any setting, it keeps you cool wherever you go. - Long-lasting battery life: Equipped with a robust 4000mAh battery, this fan offers an impressive working time of 4 to 18 hours, depending on the selected speed. It fully charges in just 1.5 hours, providing reliable performance for extended use. - Versatile and portable design: This compact hand-held fan can be used in multiple ways—hold it in your hand, place it on a table, or wear it around your neck with the included strap. The foldable design enhances portability, making it easy to carry during travel, outdoor events, or daily commutes. - User-friendly features: The fan features a one-key air volume adjustment for effortless control. A digital display shows the current speed setting and remaining battery power. Additionally, it doubles as a mobile power supply, allowing you to charge your phone, laptop, or other devices in emergencies. Use scenarios: 1. Ideal for outdoor activities such as picnics or sporting events, providing a refreshing breeze. 2. Perfect for use in offices or classrooms, maintaining comfort without disturbing others. 3. A great companion for travelers, ensuring you stay cool during long journeys or while waiting in lines.