Overview The Schumann wave generator is designed to support a balanced environment and promote user comfort. It operates within a frequency range of 0.1Hz to 30kHz, featuring a digital circuit with crystal oscillator frequency reference for stable performance and strong interference resistance. The device is intended for general wellness use and is not designed to diagnose, treat, cure, or prevent any medical condition.Features 1. Constructed with high-quality materials for reliable frequency stability 2. Capable of outputting a 7.83Hz frequency and adjustable across a range of 0.1Hz to 30kHz using programmable frequency tuning technology 3. Two models available: the green version provides sine wave output; the black version supports sine wave, square wave, and inverted square wave outputs 4. Equipped with digital circuitry and crystal frequency reference for enhanced stability and reduced interference 5. Powered via DC5.5*2.1 connector or Micro USB interface, compatible with power banks, USB chargers, or other standard USB power sources Specifications Black Standard Model: - Antenna Waveform: Sine wave - Output Waveforms: Sine wave, square wave, inverted square wave (simultaneous output) - Power Supply Interface: DC5.5*2.1 - Supply Voltage: 5V - Rated Power Consumption: