CACAGOO USB Power Supplys 7.8Hz Schumann Waves Ultra-Low Frequency Pulse Generator Sleep Improver Circular Schumann Waves Generator for Home Office Use

This schumann waves ultra-Low frequency generator can be used in yor home to reduce your metal stress also has a fine effect on insomnia if you are suffering from insomnia you can try this product it will not let you down. Specifications: Material: plastics Disk diameter: 82mm / 3.2in Power supplys: Type-c port Resonant frequency: 7.8Hz (adjustable) Package size: 100 * 82 * 20mm / 3.9 * 3.2 * 0.8in Package weight: 18g / 0.6ounce Packing list: 1 * Schumann Resonance Generator