Tenqa HP-109 - Manual (Page 9)

7
You want to clean the adapter. •
aVoiding hearing damage
volume to a safe level. You can adapt over time to a higher volume of sound that
may sound normal but can be damaging to your hearing. If you experience ringing
in your ears or muted speech, stop listening and have your hearing checked.
The louder the volume, the less time is required before your hearing could be
affected. Hearing experts suggest that to protect your hearing:
Limit the amount of time you use the HP-109 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.
driVing safely
Use of the HP-109 (even if used only in one ear) while operating a vehicle is not rec-
ommended and is illegal in some areas. Check and obey the laws and regulations
on the use of mobile devices like the HP-109 in areas where you drive.
exPosure to radio frequency energy
The HP-109 contains a radio frequency receiver. When on, the HP-109 can receive
radio frequency (RF) energy through its antenna. The HP-109 is designed and
manufactured to comply with the limits for exposure to RF energy set by the
Federal Communications Commission (FCC) of the United States of America and
other countries.
If you are concerned about exposure to RF energy, you can limit your exposure by
limiting the amount of time using the HP-109 since time is a factor in how much
exposure a person receives. Placing more distance between your body and the HP-
109 is advised since exposure level drops off dramatically with distance.
For more information from the US FCC about exposure to RF energy, see: www.fcc.
gov/oet/rfsafety
For information about the scientific research related to RF energy exposure, see
the EMF Research Database maintained by the World Health Organization at:
www.who.int/emf
Nearly every electronic device is subject to radio frequency interference from ex-
ternal sources if inadequately shielded or designed, or otherwise not configured to
be compatible. As a result, the HP-109 may cause interference with other devices.
Read the following information and instructions to avoid interference problems: