7,8 Hz Schumann Wellen Ultra-Niederfrequenz Impulsgenerator Platine Schlafverbesserer
13,25 €
Schumann wave generator. Imported chip, frequency generation pulse width is more stable. Increase the power switch, dial the ON position to turn on the power, OFF position to turn off the power. Increase the power switch, dial to the ON position to turn on the power, OFF position to turn off the power.
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