Usage Tips:Compact size and flexibility for good storage Compact and portable cool to carry around. Quiet Design Noise Detection. Violent Turbo Fan, High speed fan, LED Lighting Usage Scenarios:Camera Dust Blowing,Equipment Dust Blowing,Barbecue combustion,Drying Pets,Equipment Dusting,Plant cleaning. Battery capacity:2500mAh x 2 extra large capacity. Using external high-quality batteries, long-lasting power, big , enough not false labeling. Three wind speeds a key overclocking blowing water, blowing wind, blowing dust, fuel, wind power size in your hands. :soft wind Second gear:strong wind Three:windstorm mode High wind speed 35m/per second The wind is propelled through the air ducts and flows quickly. Product Name:Turbo Fan Maximum wind speed:39.5m/s Model:ZY7400-SE/Pro Operating Voltage:7.4V Charging time:about 2 hours Usable time per gear: range:69 minutes Second gear range:50 minutes Third gear range:27 minutes Overclocked range:20 minutes Colour:Black Material:Plastic Package Contents: 1 * Turbo Fan Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.