Adjustable Schumann Resonance Generator (0.01Hz-20kHz) | Healing Frequency Generator Rife Machine 7.83Hz Sleep Aid Stress Relief Relaxation Meditation & Yoga Enhancer USB Powered

The device is made of ABS material supports frequency adjustment from 0.01Hz to 20KHz with a default output of 7.83Hz power consumption of less than 1W offers multiple waveform outputs and has dimensions of 5.51x5.91 inches with a package weight of 0.4 pounds.