 How does this compare with PEMF machines? Most popular ones are the mats that you can line on. They cost anywhere from $3,000 to $10,000. So you line on the mat, they generate a very small electromagnetic field and you can take them around with you. They're not portable and they're a lot more expensive than sheet coils. Other devices that are using PEMF technology are these headbands and it's got these little tiny coils inside of them to generate a pulsing electromagnetic field. It won't work unless you wear it on your head. If you wear it on any other part of your body, the pulses are not strong enough for that body part. Compared to other stuff like their sheet coils just way more versatile because you didn't use this on any part of your body.