Features: Our Schumann Waves Generator offer extensive frequency ranges from 0.01Hz to 100000Hz, perfect for both scientific research and everyday use. This signal generator features high purity sine waves output and intuitively interfaces for seamlessly frequency adjustment, ensuring top notches signal quality for audios testing and scientific experiment. Ideal for audios engineers, researcher in physics and electronics, and music enthusiasts who require precise audios testing and analysis capabilities. Perfectly suited for laboratory tests, audios processing in studios, and educational demonstrations in classrooms, providing stable frequency output to enhances experimental accuracy. With its compactly and portable design, this generator easily connecting to various devices through multiple output interfaces, making it a tool for diverse experimental needs. Specifications: Component:Plastic Size:Approx.14x15cm/5.51x5.91inch Supply Voltages: 5V Antennas Waveforms:sine waves rate power:<1W The square waves signal voltages amplitudes:5V Connection Waveforms: Sine waves+square waves+inverse square waves Defaults Frequency:7.83Hz Frequency Ranges:0.1Hz-30000Hz Regulating Ranges:0.1Hz-30000Hz Voltages Amplitudes of Sine Waves Signal:3V Package Includes: 1pc Schumann Waves Generator 1pc Power Cord note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.