Introduction
This manual provides detailed instructions for the Rihveo Adjustable Frequency Generator, a device designed to emit a wide range of frequencies, including the 7.83Hz Schumann Resonance. It is intended for various applications such as enhancing relaxation, improving sleep, aiding meditation, and for scientific testing and calibration.
What's in the Box
Please ensure all items are present in your package:
- Schumann Resonance Generator Unit
- USB Cable
- User Manual (this document)

Image: The product box open, revealing the frequency generator unit, a white USB cable, and a small green user manual.
Product Features
- High-precision 7.83Hz Schumann Resonance Generator: Experience Earth’s natural frequency with accurate, stable output for deep relaxation, stress relief, and better sleep.
- Gold-Plated & Durable Design: Encased in a sturdy transparent acrylic shell with gold-plated coils, resistant to scratches, peeling, and watermarks for long-lasting performance.
- Adjustable Frequency (0.01Hz–299kHz): Provides a wide frequency range, adjustable via a keypad to meet different relaxation and therapeutic effects.
- Portable & USB-Powered: Compact (4.3 x 6.3 x 0.8 inches) and lightweight (0.5 lbs), includes a USB cable for easy power-up (5V voltage) at home, work, or while traveling.
- Versatile Applications: Suitable for enhancing meditation & yoga, promoting mental well-being, scientific research, electronic device testing, and equipment calibration.

Image: A detailed view of the frequency generator, highlighting its transparent casing and the internal circuit board with a spiral antenna.
Setup
- Power Connection: Connect the provided USB cable to the DC 5V charging port on the device and plug the other end into a standard USB charger (not included) or a USB power bank. It is recommended to use a standard USB charger rather than a portable power bank, as some power banks may automatically cut off power due to low-power detection.
- Enable Backlight (Optional): Locate the backlight switch on the device. Slide the switch to turn the screen backlight on or off for improved visibility or to reduce light disturbance.
- Initial Frequency: Upon powering on, the device will automatically display the default 7.83Hz Schumann Resonance frequency.

Image: Two panels illustrating the setup process. The left panel shows connecting the USB cable to the device. The right panel shows a hand adjusting the frequency using the keypad buttons.
Operating Instructions
- Frequency Adjustment: To change the output frequency, press the "SET" button on the keypad. Use the numbered buttons (0-9) to input your desired frequency in Hertz (Hz). After entering the frequency, press the "OK" button to confirm. The device will then operate at the newly set frequency. The motherboard will operate at the set frequency (input range: 0.01-299kHz).
- Checking Output Frequency: You can verify the device is working by connecting headphones or speakers to the audio output port. A subtle humming sound indicates the device is active. For precise measurement, professional instruments like an oscilloscope can be used.

Image: Two panels demonstrating frequency output checks. The left panel shows the device connected to professional testing instruments. The right panel shows connecting headphones or speakers to the device's audio output port.
Official Product Video: How to Use - Frequency Generator
Video Description: This video provides a general overview and demonstration of the 7.83Hz Schumann Wave Resonance Generator, showcasing its design and basic functionality.
Therapeutic Frequencies List
The following table outlines various frequencies and their commonly associated effects. Individual experiences may vary.
| Frequency (Hz) | Related Effects |
|---|---|
| 7.83 Hz | Referred to as Earth's heartbeat; Associated with grounding, balance, and connection to the Earth, helping to reduce stress and promote emotional stability. |
| 128 Hz | Reduces pain in joints and muscles, plus to increase mobility. |
| 396 Hz | Liberates negative energy and promotes grounding, security, and stability. |
| 417 Hz | Resonates with emotions and creativity, facilitating positive change and healing from past traumas. |
| 528 Hz | Promotes healing and transformation, fostering love and compassion; associated with DNA repair. |
| 639 Hz | Enhances communication, understanding, and harmony in relationships, promoting emotional healing. |
| 741 Hz | Focuses on self-expression, clarity, and communication, stimulating personal growth. |
| 852 Hz | Activates intuition and spiritual insight, deepening spiritual awareness through meditation. |
| 963 Hz | Associated with oneness and spiritual connection, elevating consciousness and promoting unity. |
| 432 Hz | Promotes calmness, relaxation, and a sense of well-being. |
Note: Frequency therapy is an intensely personalized practice, and its efficacy can differ significantly among individuals.
Maintenance
- Keep the device clean and dry. Use a soft, dry cloth to wipe the acrylic casing.
- Avoid exposing the device to extreme temperatures or direct sunlight.
- Do not attempt to open or repair the device yourself, as this may void the warranty.
Troubleshooting
- Device not powering on: Ensure the USB cable is securely connected to both the device and a working 5V power source. Try a different USB port or power adapter.
- No audible output (when connected to headphones/speakers): Verify that the headphones/speakers are properly connected and functioning. Check the volume settings on your external audio device.
- Incorrect frequency displayed: Re-enter the desired frequency using the keypad and press "OK" to confirm.
Specifications
- Product Dimensions: 6.3 x 4.3 x 0.8 inches
- Weight: 8 ounces
- Frequency Range: 0.01Hz - 299kHz
- Default Frequency: 7.83Hz (Schumann Resonance)
- Power Interface: DC 5V (USB Powered)
- Output Waveform: Sine Wave
- Material: Transparent acrylic shell, gold-plated coils
Warranty & Support
This product is verified by Transparency, with each item having a unique code for authenticity. For any issues or support, please refer to the contact information provided with your purchase or visit the Rihveo official website. Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
For further assistance, please contact Rihveo customer support.
Additional Information
Product Overview and Demonstration
Video Description: This video provides a general overview and demonstration of the 7.83Hz Schumann Wave Resonance Generator, showcasing its design and basic functionality.