If you experience ringing in your ears, reduce the volume or shut off the unit.
Keep the volume at a reasonable level even if your headset is an open-air
type designed to allow you to hear outside sounds. Please note that excessively high
volume may still block outside sounds.
RESETTING THE UNIT
If the unit experiences a power surge or electric shock, it is possible that the internal micro-
controller may lock up and the unit will not respond to any commands from the panel controls. In
this event, use a straightened paper clip, toothpick or similar objects to press the RESET button
located on the
back of the unit (see Figure ). The reset operation clears the system memory to factory default,
and all of your previous settings will be erased.
CAUTION:
Do not use a sharp or pointed object to press the reset button. It may damage the
reset switch inside the unit.
Figure 8
CARE AND MAINTENANCE
Battery Maintenance
To maintain the battery:
Periodically charge the battery to extend battery life
Switch off power after radio use to extend battery life
Remove the battery or reinsert the plastic battery pull tab for extended storage
Remove the AAA batteries for extended storage to prevent battery leakage
The battery is a rechargeable 3.7V / 600 mAh lithium ion battery. To replace the battery, open the
battery compartment cover (Figure 2) by squeezing the tab.
NOTE:
Only replace with rechargeable 3.7V lithium ion battery. Replacing the battery with a non-
rechargeable battery may damage the unit.
General Care and Maintenance
Do not tamper the internal components of the unit.
Clean your unit with a damp (never wet) cloth. Solvent or detergent should never be used.
