7.83HZ Pulse Generator 5V 0.1A Schumann Ultra-low Frequency Audio Resonator Schumann Resonance Pulse Generator for Helping Sleep

7.83HZ Pulse Generator 5V 0.1A Schumann Ultra-low Frequency Audio Resonator Schumann Resonance Pulse Generator for Helping Sleep

• ✔ MINI USB PORT POWER SUPPLY -- Adopted of Mini Usb port power supply, typically+5V 0.1A,and comes with USB cable
• ✔ ULTRA-LOW SCHUMANN -- This product is Schumann 7.83HZ very low frequency generator, features high accuracy and stability
• ✔ LOW STATIC CONSUMPTION -- Imported ultra-low static power consumption main control IC,to make the waveform more stable
• ✔ 7.83HZ PULSE SQUARE -- Output 7.83HZ pulse square , whose duty cycle is 50%. Frequency can be fine-tuned for correction