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SoundPlus
®
Infrared Listening System
14
Infrared Receivers
Figure 13: Four Channel Receiver, Model WIR RX22-4
OFF
ON/OFF
VOLUME SWITCH
A162
EARPHONE
JACK
"ON"
INDICATOR
CHANNEL
SELECTOR
Channel
Frequency
1
2.3 MHz
2
2.8 MHz
3
3.3 MHz
4
3.8 MHz
Figure 14: WIR RX15-2 Headset Receiver
INFRARED
SENSOR
BATTERY
COVER
POWER/CHANNEL
SWITCH
POWER/
CHANNEL
INDICATOR
A169
AUDIO INPUT JACK
MONITOR/MUTE
BUTTON
VOLUME
KNOB
RIGHT
LEFT
MUTE
Figure 15: WIR RX18 Under-the-chin Receiver
BATTERY
(BAT AP11A)
A235
VOLUME
CONTROL