Generador de ondas de pulso de frecuencia ultrabaja resonancia Schumann Type-C 7,83 HZ 0,5 W
Output waveform: square wave. 1 x Schumann wave very low frequency generator. Frequency: 7.83HZ. Blue light flashing, normal transmission state (normal work). We will be happy to resolve any issues you may have in a cordial and friendly manner.