
ISO 9001|ISO 14001|OHSAS 18001
-4-
Recharge the battery before first use
After unpacking the unit for the first time, please recharge the unit for about 4~5 hours before
operation. This is absolutely necessary as the built-in rechargeable battery might have been
discharged naturally due to long shipment and storage time, even though it had been fully charged in
the factory prior to shipment.
To charge the battery, just plug in the DC end of the switch mode power supply into the DC IN of the
unit and charging will start automatically. During the charging process, the charging indicator LED
will flash GREEN. When this LED turns GREEN, this battery is then fully charged.
Operating procedures
To operate this portable sound unit, switch on the main POWER switch, which will be GREEN.
If it turns RED, its battery power might be too low and recharging is necessary. The main power
switch does not switch on the wireless microphone and USB/SD digital player as each of them
has an individual Power / Volume control.
Operating the built-in wireless microphone
On the control panel, there is one power/volume control knob for the built-in wireless receiver,
which is indicated by WR.
To use the wireless microphone, first switch on the main power, then switch on the WR
power/volume control, and its nearby led will glow. Turn on its matched transmitter. Adjust the
volume till the amplified sound could be heard when speaking to the transmitter.
Operating the wired microphone
There is a MIC IN jack with dedicated volume control for this portable sound unit. To use a
wired microphone, just plug the end with a phone jack plug into MIC IN. Switch on the
Power/volume control knob (PWR/MIC) and rotate it to adjust the volume.
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