LG TONE-NP3 Manual Del Propietário página 6

Leaving a battery in an extremely high temperature surrounding
environment that can result in an explosion or the leakage of
flammable liquid or gas.
A battery subjected to extremely low air pressure that may result in an
explosion or the leakage of flammable liquid or gas.
Do not carelessly throw away old batteries. It can cause an explosion or
fire. The disposal method may vary by country and region. Dispose of it
in an appropriate manner.
NOTE
Do not pull the earbud cables with excessive force.
If the product is exposed to excessive sweat, clean the product.
Keep the earbuds clean.
Wearing earbuds for a long time may cause pain, and if humidity inside
ears continues for a long time, it may cause skin trouble.
For your safety, do not wear the product while it is being charged.
HD Speaker
If the communication network of the device you are connecting to
supports HD Voice Calling, you can enjoy making voice calls and
listening to music in high definition.
4