Operation Manual

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direct sunlight or strong ultraviolet light for extended periods of

time. Avoid dramatic changes in temperature or humidity when

using the device as condensation may form on or within the

device.

When you are using the device or charging the battery, it is

normal for device to get warm. The exterior of the device

functions as a cooling surface that transfers heat from inside the

unit to the cooler air outside.

PRECAUTION OF HEARING LOSS

CAUTION: To prevent possible hearing damage,

do not listen at high volume levels for long

periods.

Permanent hearing loss may occur if the receiver, headphones,

speakerphone, or earpieces are used at high volume. Use only

compatible receivers, headphones, speakerphones or earpieces

with your device. Turn on the audio and check the volume before

inserting anything into ears. If you experience ringing in your ears

or muffled speech, stop listening and have your hearing checked.

The louder the volume, the less time is required before the

hearing could be affected. Suggestions to protect the hearing:

 Limit the amount of time to use the receiver, headphones,

speakerphone, or earpieces at high volume.

 Avoid turning up the volume to block out noisy surroundings.

 Turn the volume down if you can’t hear people speaking near

you.

SAFETY IN AIRCRAFT

Due to the possible interference caused by this product to an

aircraft’s navigation system and its communications network,

using this device on board an airplane is against the law in most

countries. Please comply with all regulations specified by airlines

and turn off the phone or switch to Airplane Mode.

EXPLOSIVE ATMOSPHERES

In any area with a potentially explosive atmosphere or where

flammable materials exist, the product should be turned off and

the user should obey all signs and instructions. Sparks in such

areas could cause an explosion or fire resulting in body injury or