Welcome to our shop! Introducing our 7.83HZ Wave Generator, designed to provide high accuracy and stability. It is equipped with high stability frequency acquisition components, a high stability pulse chip, accurate correction capacitor, accurate multi-loop adjustable resistance, and shielded solid capacitor. The newly optimized circuit design features a stylish silver threaded transmitter circuit. This wave generator is not intended to directly improve the sound quality of audio or video products, but rather to help people relax both physically and mentally. It enhances the human body's perception of sounds and images, improving overall health and work efficiency. It also has a positive effect on relieving mental stress. Made of impact-resistant and environmentally friendly ABS material, this generator is heat and low temperature resistant. It comes with a lithium battery with a capacity of 2000mAh. Please note the following information: - Item Type: 7.83HZ Wave Generator - Material: ABS - Model: Schumann-FM783 - Purpose: Designed to relax people's body and mind, improve the human body's perception of sound and images, enhance human health, and improve efficiency. It also has a positive effect on relieving mental stress. When applying Schumann Resonances to High Fidelity, it is recommended to have a certain level of high-fidelity equipment. Differences between cables can cause pitch changes, so it is suggested to buy two trial versions for better results. Additionally, when placing the product on a speaker, it is important to ensure appropriate weight and vibration-proof treatment. For Schumann Resonances applied to sleep, it is recommended to place the test kit at least 1 meter away from the human body at the head of the bed. Use appropriate weight and anti-vibration treatment, and consider using a night light to remove the product. Try it for a week and then review the 7-day experience. Package includes: - 1 x 7.83HZ Wave Generator - 1 x Connection Line 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.