Features: Experience precise 7.83Hz resonance with this Schumann frequency generator, featuring stable signal output and enclosure for reliable performances. Advanced low frequency pulse delivers clear waveforms through its acrylic construction, eliminating signal instability common in traditional frequency generators. Ideal for scientific researcher, therapists, and biofeedback practitioners requiring accurate electromagnetic field simulations for therapeutic or experimental applications. Optimizing relaxation therapies or laboratory experiments in noise sensitive environment like studios, research facilities, and clinical biofeedback testing room. User friendly interfaces combines professional signal control, making complex frequency adjustments accessible for both academic and wellness applications. Specifications: Material: PCB, Acrylic Size: about. 10x8cm/3.94x3.15in Package Includes: 1pc Schumann Waves Generator 1pc USB Cable 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.