S7 Handheld Mini Turbo Industrial Violent Turbo Fan Brushless Motor High-Power Blower Dust Cleaner High-Capacity Battery: Equipped with a 4000mAh large-capacity battery for extended use 4 Adjustable Wind Speeds: Choose from 4 wind speeds to suit your needs Lightweight and Portable: Conveniently lightweight for easy carrying wherever you go Versatile Usage: Practical for blowing snow off car roofs,and cleaning keyboards from dust,and more High-Speed Brushless Motor: Features a 130000rpm high-speed brushless motor for powerful performance Specifications: Model: S7 Rated Output: 15W Charging Port: Type-C Voltage: 7.4V Gear: Brushless Motor Capacity: 4000mAh Operating Voltage: 130000±10%/min Turbo Fan: Aviation Aluminum Alloy Maximum Power: 120W Speed: 130000rpm/min Usage Time: 11-30 minutes Number of Fan Blades: 13 Product Weight: 273g Product Dimensions: 134 x 80 x 34mm Surface Texture: Metal wire drawing process Product Material: PC Package included: 1 x Cleaner 1 x Data Cable 1 x English and Chinese Manual Other items not included