Features: Enhances focusing and relaxation with our Schumann Resonance Generator, emiting the Earth's natural frequency for improved well being. This generator ensures durability and efficient performances, making it a reliabled addition to your setting. This device is perfectly for anyone enhancing their mental clarities and reduces stress in daily. Use this Schumann Resonance Generator in your home office or work space to create a calming environment that promotes productivity. Whether you're working on complex projects or simply unwinding after long day, this generator help harmonizing your surrounding Specifications: Item: Schumann Generator Size:about 15x10x2CM/5.9x3.94x0.79in Input DC5V 0.5A Frequency：7.83hz Package Type:With Enclosure/ Without Enclosure Package Includes: 1PC Schumann Generator note: Due to problems of lighting effects, there might be tolerances in product, please understand. Please allow 0-1cm error due to manual measurement.