What is cue link? Kyurink was developed in San Francisco in 1991 by Robert Williams. Originally people and animals have their own unique waves such as brains and ecological waves in their body. In modern society surrounded by electronics, there is almost no environment in normal life without electromagnetic waves. While electrical waves (radio waves) and magnetic waves (magnetic waves) are overflowing everywhere, our body must maintain the original echoic waves. Keurink creates healing waves that exude natural world, creating a relaxing environment. When your body is properly balanced, it naturally activates the possibility and potential abilities of the body. Recommended for those who are concerned about electromagnetic waves around their body, such as mobile phones, computers, and those who feel sensitive to electromagnetic waves, those who are concerned about their quality of sleep.