Specifications: Material: PC, aluminum alloy Rated output: 15W Voltage: 6-8.4V Capacity: 6000mAh Maximum power: 120W Rated speed: 160000RPM Usage time: 10min-4h Size: 143*39mm/5.63*1.54inch Features: High-Speed Performance: Reach up to 160,000 RPM for the airflow experience. Enjoy powerful cooling on the go with our mini Violent fan. This compact Violent fan boasts a sleek design and robust construction, delivering exceptional performance with a peak wind speed surpassing 52m/s. Equipped with large, precision-machined blades crafted using advanced CNC technology, this Violent fan operates quietly while generating powerful airflow. Its compact size and portability make this pocket dust blower ideal for use on the go. The mini Violent fan is powered by two built-in 21700 batteries, offering impressive endurance with a usage time of up to 4 hours. It's the perfect companion for car drying, cleaning, camping, and other outdoor activities. Come with safety hammer head, you can break the window when in emergency. Package 1PC Violent fan