CRONY F31 Super Fower Turbo Fan 130000RPM Jet Fan Super Power Turbo Fan Compressed Air Duster 3 Gear Electric Fan Violent Fan For Household Cleaning Tool Features: 3 Speed Compressed Air Duster This compressed air duster adopts the latest upgraded brushless motor with powerful wind power three speeds adjustable maximum air speed of 130000RPM maximum blowing force of 150G providing a strong airflow that can easily help you to clean debris and dust in all kinds of crevices Rechargeable Electric Air Duster This Electric air duster can be recharged and used repeatedly fully charge it in three hours with a maximum usage time of 4 hours (1 Gears) ；20min (3ears) Multi-purpose Air Duster This duster is designed with the latest construction (0.48lb 5.4in) for easy use and portability Multiple Use The nozzle has a magnetic design. It is easy to carry and can be used indoors and outdoors. It is suitable for a variety of scenarios such as cleaning desktops keyboard camera lenses drying pet hair and water droplets . Specifications: Part Name: Super Power Turbo Fan Product model: F31 Battery capacity: 2500mAh Working voltage: 6-8.4V Power dissipation: 120W (3rd gear) Theoretical endurance: 4h (first gear);20min (3ears) Full charge time: 3 hours Size: 13783.536.3mm Product weight: 218g Material:ABS Color:As picturs shows F31                    3 Gear         2 Gear          1 Gear RPM           130000RPM    100000RPM    50000RPM Grade                 Lv.16          Lv.10             Lv.4 Wind Pressure    150G         80G              30G Package Content: 1 Super Power Turbo Fan 1 Type-C cable