Frequency Generator for Healing Resonator vs 7.83Hz Frequency Generator for Better Sleep

These are near-identical Schumann resonance generators built on the same 0.01 Hz to 200 kHz spec, so the choice comes down to power and output detail, not performance class. The BG01 (A) is the simpler, more portable unit: ABS shell, 200 g, Type-C power, under 1 W. The SWRG002 (B) adds a DC barrel jack option and published voltage amplitudes (3 V sine, 5 V square), which helps if you want to drive a coil or antenna. Neither is a medical device, and no credible evidence supports the healing or EMF-neutralizing claims in B's listing. Buy on connectors and form factor, not on the marketing.

• Choose the Frequency Generator BG01 if you want a compact Type-C-powered unit with the same frequency range and waveforms and no extra cables to manage.
• Choose the 7.83Hz Sleep Generator SWRG002 if you want a DC 5.5x2.1 jack option and published output amplitudes for driving an antenna or coil.