Vender 7.83HZ Schumann Wave Module Audio Resonator DC 5V 0.5A Kit for Helping Sleep al mejor precio

Description: Adopted of Mini Usb port power supply, typically+5V 0.5A,and comes with USB cable. 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 For audio-visual space to enhance the sound field and audio-visual effects. For the tea ceremony, spirituality, realization space - resting body and mind. Specification: Frequency: 7.83Hz Rated voltage: DC 5V Rated current: 0.5A Package Includes: 1 Set 7.83HZ Schumann Wave Ultra-Low Frequency Pulse Generator Audio Resonator 1 Piece Acrylic Case 1 Piece USB Charge Note: Notice: the Switch only for the indicator light ON/OFF The Transparent acrylic box need assembly it by yourself (The acrylic have the protective film) For more information please Google "Schumann Resonance".