Explore bio-resonance and frequency experimentation with this precise Schumann Wave Generator. Capable of producing adjustable sine, square, and inverted square waves from 0.1Hz to 30kHz, it features a default 7.83Hz Earth resonance frequency and offers versatile output for research, wellness, or hobbyist projects. Product Features Adjustable Frequency Output Generate precise frequencies from 0.1Hz to 30,000Hz (30kHz), with a default setting of the fundamental Schumann resonance at 7.83Hz. Dual Waveform Output Modes Provides a 3V sine wave via the antenna and a 5V square wave (plus inverted square) via the interface port for various experimental and application needs. Simple Direct Frequency Input Easily set any frequency using the onboard keypad. Input the desired value directly (e.g., 7.83) and confirm for instant adjustment. Compact & Portable Design Housed in a compact case (15.5 x 10.5 x 2.8 cm) with a low power consumption (<1W). Powered via a standard Micro USB port using a power bank, charger, or computer. Ready-to-Use Kit Includes the assembled generator with case and requires only a Micro USB cable (not always included; please verify) and a 5V power source to begin operation. Technical Specifications Output Waveforms: Sine Wave (Antenna), Square & Inverted Square Wave (Interface) Frequency Range: 0.1 Hz – 30,000 Hz (30 kHz) Default Frequency: 7.83 Hz Output Voltage: Sine ~3V, Square ~5V Power Supply: 5V via Micro USB Dimensions: ~15.5 x 10.5 x 2.8 cm (with case) Usage Connect the unit to a 5V USB power source. Use the keypad to input your desired frequency and press OK. The antenna emits the sine wave, while the interface port outputs the square wave signals.