Notes
• If you replace the battery while the POWER switch
is in the ON position, the unit may not operate. In
such a case, turn the POWER off, then back on.
• If you use Receiver unit and Transmitter unit too
close to each other (with in about 50 cm), you may
hear the sound even though the setting of the
CHANNEL selector switches are not matched
among units. This is not a malfunction of the system.