This is an n-type CMC pendant containing 1500mg of CMC. Quantities are limited. Thank you for your understanding. In modern society, it is becoming increasingly difficult for us to escape electromagnetic waves. Smartphones, computers, Wi-Fi, and many other electronic devices surround us, and we are constantly exposed to these electromagnetic waves. In this environment, our concerns about our health are growing. CMC is said to protect against all kinds of interference that emit electromagnetic waves, such as 5G networks and home appliances, and to maintain both physical and mental health. It is effective in relieving discomfort in the neck and arms, fatigue, and a feeling of tightness around the head. I also carry one with me at all times, and since I started using it, I feel very refreshed and can spend every day comfortably without hardly feeling electromagnetic waves. Please use it as a charm to protect yourself from electromagnetic wave attacks such as thought interception! In addition, this product is an overseas product with superior protective functions in the United States and Europe, and results have been obtained from research institutions in the United Kingdom and France. Please wear it every day, in your pocket or as a necklace. *Individual results may vary. *The CMC pendant is a tool to protect against electromagnetic waves and is not a medical device. If you have any health concerns, please consult a doctor.