7,83 Hz Schumann Wellengenerator Schumann Resonanz Impulsgenerator Hilft beim Schlafen
14,86 €
A long press of the switch for 5 seconds turns off the output, making it user-friendly and efficient. With its four-light power indicator that blinks during charging and a low energy consumption of 5V, 0.08A, this device ensures long-lasting use on the go.
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