Lenovo g405s speaker power is about 2w. Generally, the speaker power of notebook computers is relatively small, within 5w. The speaker of Lenovo's old notebook is smaller, about 2w, and the impedance is generally between 4 ohms and 8 ohms.

The power of speakers can be divided into nominal power and maximum power. Nominal power is called rated power and undistorted power. Refers to the maximum input power of the speaker within the rated undistorted range, and the power marked on the trademark and technical specification of the speaker is the power value.

The maximum power refers to the peak power that the speaker can bear at a certain moment. In order to ensure the reliability of the speaker, the speaker is required to be the best.