Specification: Power: 250W 420m3/h 1100Pa 71db Nominal voltage: 220V Speed: 2800r / min Frequency: 50Hz Material：ABS Function: 1. the product is suitable for advertising models, children play with inflatable models, etc ..; 2. the product has low noise, large air volume, high wind pressure, small volume, light weight, easy assembly, safe and reliable, convenient use, beautiful appearance, energy saving, time saving, improved work efficiency and little environmental impact. Note: When using storage and transportation products to pay attention to moisture, dust, acid and alkali and anti-vibration.