| Brand | Unbranded |
|---|---|
| Frequency Range | .01 - 999.99 |
| Country of Origin | China |
Check the listing for details. Schumann Adjustable Frequency Generator 01 hz- 999.99 hz. Condition: New – Open box, Made in China. Listed at 150.00 USD. Choose gentle sine waves for calm or sharper square waves for focus—all in a compact, travel-friendly device designed for on-the-go frequency therapy. Covers full 0.01–999.99 Hz frequency range. 0.01 Hz frequency precision.