Excessive exposure to loud sounds can cause hearing damage.
Exposure to loud sounds while walking may distract your attention and cause an accident.
Always turn the volume down before plugging the earphones into an audio source and use only the minimum volume setting necessary to hear your conversation or music.
In dry environments, static electricity can build up in the headset. Avoid using headsets in dry environments or touch a metal object to discharge static electricity before connecting a headset to the device.
Do not use a headset while driving or riding. Doing so may distract your attention and cause an accident, or may be illegal depending on your region.