915 Generation Dc 5V 7.83Hz Precision Schumann Resonance Ultra-Low

Product details are as follows

Application: no
color:blue
Material: metal + pc
Features:
This product is Schumann wave 7.83HZ very low frequency generator, features high accuracy and stability.
High stable frequency acquisition elements: high stability pulse chip, precision correction capacitance, precision multi-loop adjustable resistor
Module size: length and width (102 * 80mm)
Frequency: 7.83Hz
Rated voltage: DC 5V
Rated current: 0.5A
Notice:the Switch only for the indicator light ON/OFF
Package Contents:
1 * motherboard
1 * USB charging cable
1 * screw package
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