1. Broadband adjustment: adjustable from 0.1Hz to 99999Hz, flexible coverage of various application scenarios to meet different needs. 2. Button operation: With a simple and convenient design, even beginners can easily get started and operate without any pressure. 3. Shuman wave simulation: Simulating the natural Shuman wave of 7.83Hz on Earth can help relax the body and mind and promote health. 4. High integration design: Digital circuits replace analog circuits to improve anti-interference ability and system stability. 5. High quality Material: High transparency acrylic shell, beautiful and durable, moderate size, easy to place and carry. Antenna waveform: sine wave Power supply interface: Micro-USB interface Supply voltage: 5V Rated power consumption: Less than 0.5W Default frequency: 7.83Hz Adjustment range: 0.1Hz~99999Hz Color: Green & Gold & Transparent Material: PCB+Acrylic Package Contents: 1 * Schumann Wave Generator 1 * USB cable (random colors, don't accept the specified color)