Valkee NPT 1100, Instructions For Use Manual

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Before switching on the device, make sure that the photoconductors for the LED lights
in the ear pieces are not damaged or broken. A damaged photoconductor may harm
the auditory canal – for example, by cutting the skin.
Press the power button to switch the device on (see Figure 6). When the device is
switched on, it beeps and the green light (B in Figure 6) begins to flash. If you need to
discontinue the treatment before it ends, press the power button and hold for
approximately three seconds.
Figure 6. Switch the device on with the power button.
When the treatment ends, the green light begins to flash and the device beeps twice.
You may now remove the ear pieces from your ears. The device switches off
automatically.
When the battery is nearly empty, the device beeps thee times and the orange indicator
light begins to blink slowly.