The charger has an electric current sound
The human ear can hear the "sizzling" sound of the charger in a quiet environment, which is produced by high-frequency vibrations when current passes through electronic components such as piezoelectric ceramics. This is a normal phenomenon, please don't worry. People who are sensitive to noise will perceive electric current sound due to differences in personal perception. It is suggested that you place the charger far away from your ears for charging or replace it with a socket to confirm the sound source. You can go to the after-sales outlets for inspection if you still feel that the sound is loud.
Does it help?
Yes
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