Sky 4.0 SERIES, User Manual

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• Do not use or place the battery under direct sunlight, or in hot places, it may cause leakage
and overheating, thus reducing performance and shortening the lifespan.
• Do not charge the battery for over 24 hours continuously.
• Use the earphones carefully as excessive sound pressure from earphones and headphones
can cause hearing loss.
1.2 Precaution for the use of charger
• Do not cause short circuit to the charger, or it may cause electric shock, fumes and damage
to the charger.
• Do not use the charger if the power wire is broken, or it may cause fire and electric shock.
• Please remove accumulated dust on the power plug.
• Do not put water containers next to the power supply to avoid overheating, fire, electric
shock and malfunction in case they come into contact.
• Do not disassemble or tamper with the charger or it may cause personal injury, electric
shock, fire and the damage of the charger.
• Do not use the charger in places of high humidity, like bathrooms, or it may cause electric
shock, fire and damage of charger.
• Do not touch the charger, power cord or power plug with wet hands or it can cause electric
shock.
• Do not put heavy objects on the power cord or change the power cord or it may cause