Description <br> Features: Experience unparalleled frequency customization with our adjustable Schumann Waves Generator, offering a ranges from 0.01 to 99999Hz with precise 0.01Hz increments, surpassing traditional limitations. <br> Featuring a color screen, this device allows effortless selection of multiple waveforms, including square and sine waves, providing versatility beyond just the Schumann resonance. <br> Ideal for stressed professionals, students, and individuals, this generator aids in improving sleep quality. <br> Perfect for creating a environment in bedrooms, offices, it help you relax and unwind. <br> Crafted from plastic, this electronic suite integrates seamlessly into your lifestyle, making it a essential tool for well being and stress relief. <br> <br> Specifications: Material: Plastic <br> Adjsutable Ranges: 0.01-99999hz <br> Port: VGA <br> Output Port: 3.55mm Earphone Port <br> Size: About. 8x2cm/3.15x0.79in <br> <br> Package Includes: 1 Set Schumann Waves Resonance Generator <br> <br> note: Please allow 1-2cm errors due to manual measurement. <br> Due to difference between different monitors, the picture may not reflect the item actual color. <br>