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Shenzhen Qinda Electronics Co., Ltd.
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High Power Schumann Waves Generator 7.83Hz Pure SineWave Generator Earth Resonant Frequency Generator
$3.44-5.07
Min. order 5 pieces
7.83HZ Schumann Wave Generator Schumann Resonance Pulse Generator with USB Audio Resonator Low Frequency Pulse for Helps Sleep
$13.91-14.49
Min. order 5 pieces
Schumann Waves Resonance Generator 7.83Hz Ultralow Frequency Pulse Audio Resonator With Acrylic Case 0.01~100KHz Adjustable
$15.40-15.94
Min. order 2 pieces
7.83hz Schumann Resonance Ultra-Low Frequency Pulse Wave Generator Audio Resonator With Box for Electrical Tool
$6.34-7.79
Min. order 5 pieces