Feature: 1. This product is a Schumann 7.83HZ extremely low frequency generator with high accuracy and stability2. High stability frequency acquisition components, high stability pulse chip, accurate correction capacitor, accurate multi‑loop adjustable resistance, shielded solid capacitor 3. Adopt newly optimized circuit design, gold-plated transmitter circuit 4. Let people relax physically and mentally, improve the human body's perception of sounds and images, improving human health, enhance the work efficiency, and have a good effect on mental stress 5. ABS material, impact resistance, environmental protection, heat resistance and low temperature resistance Specification: Item Type: 7.83HZ Generator Package List: 1 x 7.83HZ Generator 1 x Connection Line |