How to Use
Open the cartridge cover, put
the battery in correct
direction. Zinc Air Battery is
best choice and has longer
life.
1. Before use, make sure the
power is turn off, or make the
volume to “1”.
3. Turn on the power and
adjuster the sound volume to
get clear sound.
4. If you hear the whistling
sound, please check whether
you have plugged in the ear
plug tightly, please change
the other size plug.
2. Put the ear hook on your ear, plug in
the ear plug tightly. (Note
:
The unit is
on “off” position. And volume is on “1”,
otherwise the instant sound will make
you uncomfortable).
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