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Note: The product does not come with a TYPE-C power cord, you need to bring your own。
Working voltage: DC 5V2 Working current: 14-17MA
3 Power interface: Type-c(Support TYPE-C TO TYPE-C power supply)
4 Default frequency: 7.83Hz
5 Adjustment range: 0.01Hz~9999Hz Pure Sine Wave
7 Signal voltage amplitude: 3V
8 With 3.5MM audio output
9 Size: 78*50*8MM(Mini Size)
10 Weight : 17g(Light weight)
Compared with the old version, this low-cost and high-cost version has improved some functions without changing the performance:
1 Changed the LCD display to a digital tube display
2 Changed 14 buttons to 3 buttons
3 0.01Hz~9999Hz Adjustable
Retained functions:
1 Double-sided super-long antenna
2 Over-current and over-voltage protection
3 3.5MM audio interface
4 Dedicated pure sine wave chip
5 High-speed operational amplifier
How to use:
Connect to TYPE-C power supply, the digital tube displays 7.83, and the board will automatically emit 7.83HZ Schumann wave
Q&A:
Q1:How to adjust the frequency
1 When powered on, the digital tube displays the frequency. Press the ''SET'' button, the last decimal point flashes, and the setting mode is entered.
2 Press the ''++''/''--'' button to increase or decrease the frequency. Long press to speed up the adjustment.
3 After setting the frequency you need, press ''SET'' again to exit the setting and save the parameters.
Q2:Need to save parameters even after power off?
A2: Please press and hold the ''++'' Button until the LED displays ''S-N''
Q3 How to restore factory settings:
1 Normally, power on again to restore default settings.
2 If the power-off save function is enabled, please press and hold the ''++'' Button until the LED displays ''S-F'', then power on again to restore factory settings.
Q4: How to turn off the digital tube?
A4:Press and hold the ''--'' button until the digital tube displays ''S-P''. The digital tube will automatically turn off after 10 seconds.
Q5 Why d
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