Panasonic TY-ER3D4ME Operating Instructions Manual page 6

 Using radio waves 
This unit uses the 2.4 GHz radio frequency
ISM band (Bluetooth
equipment may use the same frequency. Be sure
to take note of the following to prevent radio wave
interference from other equipment.
● Restriction of use
For use only in your country.
● Range of use
The range of use is up to approximately 3,2 m.
The range may be less depending on the
structure of the building, the environment
and any obstacles between the receiver and
the transmitter. Such obstacles as reinforced
concrete walls and metal doors, in particular,
obstruct the transmitter's signals.
● Interference from other equipment
Due to radio interference, malfunctions may occur
if the unit is placed too close to other equipment.
We recommend keeping the unit as far away as
possible from the following devices:
Bluetooth
LAN, microwaves, offi ce automation devices,
digital cordless telephones and other electronic
devices.
The unit is designed to automatically avoid radio
interference from these household devices.
However malfunctions may happen when radio
interference occurs.
Accessories
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 < > indicates the quantity.
6
®
). However other wireless
®
devices other than this unit, wireless
(K2KYYYY00164)