Hutt W8 Manual Del Usuario página 6

(1) It is recommended to spray some window cleaner to
the window before use.
（2） Hold the power button for more than 1s to start the
machine.
（3） Make sure the machine has attached to the
glass,then release the machine and short-press the
button, and the machine starts to work.
※If there is too much dust on the surface of the glass, please wipe
clean an area the same size as the device before installing it.
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