Features: 1. A Professional portable fan with integration of design, simple appearance and firm structure. 2. USB mini folding fan, portable handheld fan, intelligent control system, reliable performance, which is fully functional and easy operation;Endurance is also excellent, with large capacity battery, it charging once, to meet the owner's needs for a week. 3. Perfect for indoor and outdoor use, the personal fan can produce natural wind to keep you cool when reading, doing sports, waiting in line and travelling, it would be your best partner in such hot summer. 4. Multi speed adjustable power fan, turn down or turn off air with infinitely variable speed technology,efficient and save energy. 5. Has a wearable magnetic dial that unlocks your hands, portable using. Specification: Rated Voltage: 3.7V Power: 3W Battery capacity: 1500mAh Charging Time: 3.5H Working Time: 1.5-6.5H Input: 5V-0.8A Size: 100 x 86 x 52mm Package List: 1 x USB Fan 1 x Charging Cable