7,83 Hz Schumann Resonanz Ultra-Niederfrequenz Pulswellengenerator T ype-C Port
17,50 €
Output waveform: square wave. Schumann Wave Very Low Frequency Generator 1. Frequency: 7.83HZ. Blue light flashing, normal emission status (normal work). Power: 0.5W. hope you could understand. Red light on, charging in progress.
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