... ShapeVoltage / Power110V,40W; or 220V,40W; 50HzMotor SpeedMax. 7,800 RPM- Min. 2,900 RPMSwitch TypeButtons and Rotary KnobSpeed SettingStepless AdjustmentTimingAvailableOscillating ... for kids or eldersthan that of a traditional one.*** Features:Brushless motor,long endurance,strong power,energy efficientBladeless structure,easy to clean90 ...