Product color: black Product size: 143 * 93 * 39mm Battery capacity: 4000mAh Maximum power: 200W Charging time: 2.5-3h Motor gear: 3rd gear Usage time: 3 hours (first level)/10 minutes (third level) Motor speed: 130000 rpm Wind speed: 52m/s characteristic: 1.4000mAh rechargeable: This mini jet fan is equipped with 2 high-performance 21700 batteries; Good battery life, with a maximum usage time of up to 3 hours. Equipped with a USB cable forconvenient charging. 2. Powerful performance: This mini jet fan has a stylish appearance and a good structure. Its maximum speed is about 130000rpm, with a peak wind speed exceeding 52m/s, and it has strong performance. Very suitable for various dust removal. 3. Quiet operation: This mini jet fan uses CNC technology precision machined large-sized blades to provide powerful airflow while operating quietly. Enjoy the fresh breeze and undisturbed noise. The packaging includes: 1 * Turbo fan1 * Air nozzle 1 * USB charging cable1 * Instructions