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The product can not only output 7.83Hz Schumann wave, but also can adjust the frequency within the range of 0.01Hz~9999Hz, and the high-speed DAC can produce pure sine wave signal. This product can not only output 7.83Hz Schumann wave, but also adjustable in 0.01Hz~9999Hz sine wave.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.