What are the advantages and disadvantages of Huawei traditional fans?

Hanging neck fan with semiconductor chip has the following advantages and disadvantages.

Advantages: low noise. Compared with the traditional mechanical fan, the neck-hanging fan uses semiconductor chips as heating and cooling elements, and has no rotating parts, so the noise is less.

2. Disadvantages: insufficient heat dissipation, the semiconductor chip will generate heat when working. If the heat dissipation effect is not good, the temperature of the semiconductor chip may be too high and the service life will be reduced.