Features: High air ventilation efficiency and low noise while operating.Effective and extremely quiet ventilation clears humidity and odors quickly.Durable , blade and copper motor maximum . quick installing. Easy to use and maintain.Perfect bathroom, toilet, kitchen, garage and so on.Specifications:Condition: Color: BlackMaterial: metalPower: 25WVoltage: 220VRated Frequency: 50HZRated Rotation Speed: 2800r/minDrilling Hole Diameter: 100mm/3.94inchSuction Air: 200m/HOperating Noise: 30~35dbSize: . 13.2 x 13.2 x 7cmPackage Contents:1 x 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.