The SC-31A is an optimized Schumann wave signal generator. It features coils on both sides for electromagnetic wave transmission, and its frequency can be reset even after a power outage. It features an OLED display and fewer buttons for input. This cost savings translates to four channels of audio output, along with added overcurrent and overvoltage protection, a shorter frequency output range, and improved frequency accuracy.

This device not only outputs 7.83Hz Schumann waves but also adjusts the frequency between 0.1Hz and 999.9Hz. A built-in high-speed DAC allows for switching between pure sine and square wave signals. Select Output Mode: PEMF (Default): If no audio is connected, the device will emit a pulsed electromagnetic field (PEMF) via the Schumann wave coil. The effective range is approximately 1.5 meters. Audio Output: Connect headphones or speakers to the 3.5mm audio jack using an auxiliary cable. The frequency will be output as sound, audible both inside and outside the room, depending on the range of your audio device.



1. Operating Voltage: DC 5V
2. Operating Current: 500mA
3. Power Interface: Type-C (supports Type-C to Type-C power supply)
4. Adjustment Range: 0.01Hz~999.9Pure Sine & Square Wave
5. Signal Voltage Amplitude: 3V
6. Four 3.5mm Audio Output Ports (4 Output Channels)
7. Transparent Acrylic Case
8. Dimensions: 115mm*85mm*18mm
9. Weight: 182g
10. Built-in: 2000mA Li-ion Battery
11. Charging Time: 2-3 hours
12. Battery Life: 6-10 Days


Instructions:

For better performance, connect one to four external antennas (ANTSA01/ANTSB02/ANTSC03) to the audio output.
Q1: How do I adjust the frequency?
A1: Press the ''+'' or ''-'' button to increase or decrease the frequency. Long press to accelerate the adjustment, and release to save the frequency.
Q2: How do I switch between ''sine wave'' and ''square wave''?
Q2: Simply press the button to switch between sine wave and square wave.
Q3: How do I turn the power on and off?
A3: Push the button to ''ON'' to turn the power on, and ''OFF'' to turn the power off.