Features: Experience superior performances with schumanns waves generator, featuring an optimized circuit design and silver thread emission circuit for low frequency pulses generation at 7.83Hz. This low frequency pulses generator boasts high precisions and stability, with ABS materials build that ensures durability, impacts resistance, and easy portability for everyday use. for busy professional, students, and wellness enthusiasts seeking to enhances relaxation, improve health, boosters productivity, and effectively reduce mental stress through targeted frequency therapies. Use this 7.83Hz signals generator home offices, meditation spaces, or work environments to promote deeply mental and physical relaxation while enhancing perception of sounds and images. Engineered with high stability frequency components, precise calibration capacitors, and shielded solid capacitors for consistent and accurate pulses delivery in any setting. Specifications: Materials: ABS Size:100x90mm Package Includes: 1PC schumanns Waves Generators note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!