5
1. Power switch
Push the switch to switch ON the unit’s
power.
To switch it OFF, push the switch again.
2. Power/battery indicator
Turning on the power switch causes this
indicator to come on, allowing it to also
function as a battery indicator.
This indicator continuously lights green while
the battery is fully charged, and gradually
changes to red as the battery becomes
weaker.
3. Built-in microphone
4. External microphone input terminal
Used to connect a headset microphone or
other external microphone.
5. Infrared emitter
Transmits the infrared beam for communications.
6. Function button
This button can be used only when the
Channel selector switch (10) is set to "A"
position.
The IR-801AF keeps outputting Channel A’s
audio signals of the IR-310M and providing
a closed contact output while this button is
pushed. (Refer to p. 7 "OPERATION.")
7. Clip
Used to fix the IR-310M to the front of your
clothes for hands-free use.
8. Battery cover
Contains the battery compartment.
Be sure to open and close the cover
correctly.
(Refer to p. 5 "BATTERY INSERTION.")
9. Neck strap
Used to hang the infrared wireless
microphone around the neck.
(Refer to p. 8 "INFRARED WIRELESS
10. Channel selector switch
Set the selector switch to the desired
channel "A" or "B."
(Refer to p. 10 "CHANNEL SETTINGS.")
11. Microphone sensitivity selector switch
Used to select the microphone sensitivity.
(Refer to p. 8 "Setting the Microphone
Sensitivity Selector Switch.")
12. Charging terminal
(Refer to p. 6 "WHEN OPERATING ON
A
B
H
L
3
Arrow mark
IR-310M (rear)
IR-310M (rear)
6. BATTERY INSERTION
Step 1. Switch the unit’s power OFF.
Step 2. Remove the battery cover.
Slide the battery cover in the direction of the
arrow while pressing on the arrow mark.
Step 3. Insert an IR-200BT rechargeable NiMH
battery, noting correct polarities (+ and –)
indicated in the battery compartment.
Step 4. Replace the battery cover securely.
ON/OFF
IR-310M (front)
Power switch
