Operating Instructions

Warnings and Precautions
38
Prevention of Hearing Damage
Using a headset at high volume can damage your hearing. To reduce the risk of damage to
hearing, lower the headset volume to a safe and comfortable level.
Safety of Children
Comply with all precautions with regard to children's safety. Letting the child play with your
device or its accessories, which may include parts that can be detached from the device, may
be dangerous, as it may present a choking hazard. Ensure that small children are kept away
from the device and accessories.
Accessories
Use the accessories delivered only by the manufacturer. Using accessories of other manufac-
turers or vendors with this device model may invalidate any approval or warranty applicable to
the device, result in the non-operation of the device, and cause danger.
Battery and Charger
• Unplug the charger from the electrical plug and the device when not in use.
• The battery can be charged and discharged hundreds of times before it eventually wears
out. When the standby time and the talk time are shorter than the normal time, replace the
battery.
• Use the AC power supply defined in the specifications of the charger. An improper power
voltage may cause a fire or a malfunction of the charger.