Schumann wave
Electromagnetic Canceller REM8
Features:Power supply voltage: 3-5V, or 2-4 AA batteries in seriesSize: 72mm*64mmOriginal product ad..
$125.00
Schumann wave resonance generator，Scalar wave
Schumann wave resonance generator1Used in audio-visual space-improve sound field and audio-visual ef..
$100.00
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