Frequency Pendant & Energy Healing Necklace (4)

The OneDevice is a patented wearable frequency pendant that combines Solfeggio sound frequencies with infrared and visible light. Wear it as a necklace or under your clothes and it works quietly in the background, designed to support calm, focus and restful sleep. No apps and no settings.

A frequency pendant in four finishes

Choose from Black Nickel, Rose Gold, 24K Gold or Platinum. Every finish runs identical technology; the difference is purely materials and appearance. Inside each pendant, shungite and clear quartz sit in a copper casing plated with thick precious metals, so it looks and feels like fine jewelry.

Energy healing jewelry, tested in a pilot study

Unlike most energy healing jewelry, The OneDevice actively emits sound and light. In our 248-person pilot study, 89% of users who started with above-average stress reported less stress. Read the science behind The OneDevice to see how Solfeggio frequencies and light therapy work together, or learn how it supports nervous system regulation.

Stress relief jewelry that's EMF-free by design

Many people searching for an EMF necklace simply want to avoid adding more devices to their day. The OneDevice contains no Bluetooth, no Wi-Fi and no EMF-emitting components, making it a calm, low-tech choice for EMF-conscious wearers. A full charge lasts approximately 90 hours.

Try it risk-free

Every OneDevice comes with a 90-day money-back guarantee, so you can wear it, notice how you feel and decide for yourself.