Features: Harness the natural resonance with this 7.83Hz Waves Generator, scientifically engineered to emit low frequency square waves for enhanced relaxation and mental focus. This compact 9.8cm device delivers stable 7.83Hz square waves pulses, replicating natural electromagnetic environments. Ideal for sleep deprived individuals, high pressure professional seeking stress relief, and users pursuing science backed wellness solution. Optimize spaces like bedrooms, meditation areas, or workstations by placing the generator within 1-3 meters to create a calming frequency environment throughout daily routines. Monitor real time frequency alignment or enjoy discreet operate during sleep cycles via 5V power from any USB source. Specifications: Component: Plastic Frequency: 7.83Hz Power: 0.2W Output waveform: square waves (including natural harmonics) Size: about. 9.9x6.8cm/3.9x2.68in Pattern: Without Indicators/With Indicators Package Includes: 1pc Resonance Generator note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.