Features: This rechargeable frequency generator boosts physical and mental well being by reducing stress, enhancing sleep quality, tailored for health focused individuals in today fast paced world. Featuring a stable 7.83 Hz low frequency output and a compact, lightweight plastic design, this resonance generator ensures performances for improved rest and vitalities. Perfect for busy professional, students, and modern way of life enthusiasts seeking stress relief, this low frequency device caters to those prioritizing holistic health. Effortlessly use this portable frequency generator at home, in office, or during travel, create calming environments and meet diverse wellness needs. Enjoy high precisions and stability with this versatile resonance generator, enhancing productivity and mental clarities while offering functionality. Specifications: Component: Plastic Frequency: 7.83hz Size: about. 115x85mm/4.53x3.35in Color: White/Black Package Includes: 1 Set Resonance Generator note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.