Schumann Wave Generator 0.01Hz-30kHz Pure Sine Frequency Modulated with Multiple Waveforms

Product Details 1. Digital circuit crystal oscillator reference - delivers stable signal output and strong anti-interference, maintaining consistent performance 2. Pre-set 7.83Hz Schumann wave plus adjustable frequency (0.1Hz to 30kHz) - caters to diverse usage needs 3. Two specification options - green version outputs only sine wave; black version supports sine, square and inverted square waves, matching different application scenarios 4. Dual power supply interfaces (DC 5.52.1 or Micro USB) - works with power banks, USB chargers and other 5V USB-powered devices for flexible use Specifications 1. Universal parameters: Power supply voltage: 5V; Rated power consumption: <1W; Default frequency: 7.83Hz; Frequency adjustment range: 0.1Hz to 30kHz; Sine wave signal amplitude: 3V; Square wave signal amplitude: 5V 2. Black version: Material: Plastic; Dimensions (with housing): Approx. 15.5x14.5x2.8cm / 6.1x5.7x1.1in; Circuit board size: Approx. 15x14cm / 5.9x5.5in; Power supply interface: DC 5.52.1; Output waveforms: Sine wave, square wave, inverted square wave 3. Green minimalist version: Colour: White; Material: Plastic; Dimensions (with housing): Approx. 15x10cm / 5.9x3.9in; Power supply interface: Micro USB; Output waveforms: Sine wave Package Contents 1. 1 x Schumann Wave Generator 2. 1 x USB Cable 3. 1 x Earphone 4. Only the above items are included; other products shown are not part of the package Warm Tips 1. Product colour may appear slightly different due to light reflection or varying display settings 2. Connect to a compatible 5V power source (such as power bank or USB charger) for operation 3. Ensure correct alignment of power supply interface for stable performance