Feature: 1. PROMOTES RELAXATION AND HAPPINESS: The 7.83Hz generator emits a sinusoidal wave that helps create a relaxing environment and promotes an overall sense of well being. 2. ADJUSTABLE FREQUENCY: With an adjustable frequency range of 0.1‑30,000Hz, you can customize the frequency to enhance efficiency and personalization. 3. MULTIPLE WAVE SHAPES: The generator offers a variety of waveforms, including sine, square and inverted square waves, allowing for multiple applications and a wider range of uses. 4. COMPACT AND CONVENIENT: The generator's PCB board measures 15x15cm, making it compact and easy to carry. It can be powered through the USB port, providing convenience for home and travel use. 5. STABLE AND RELIABLE: The 7.83Hz generator ensures stable frequency output with a default frequency of 7.83Hz.The voltage amplitude of the waveform signal is 3V for sine wave and 5V for square wave. Specification: Item Type: Sine Wave Generator Material: PCB Antennae Waveform: Sine Wave Interface Waveform: Sine Wave, Square Wave, Inverted Square Wave (The lower left corner is the output interface, waveform output at the same time) Power Supply Interface: DC5.5x2.1 Supply Voltage: 5V Rated Power Consumption: