Usage method: 1. Hold the first layer of the product and pull out the second and third layers of the product, so that the second and third layers are fixed without shaking. 2. Install the fan blade onto the rotating shaft of the motor, and press the fan blade cover to make the electric fan blade cover closely fit with the motor rotating shaft. 3. Open the battery cover, install two No. 5 dry batteries, and pay attention to the positive and negative pole directions of the batteries. 4. Toggle the bottom switch to turn on the fly fan.