"It holds a fair amount of information and you can add your picture to help aid in identification. I did speak with some EMTs and Paramedics and none had ever heard of this. However they did say that if the saw someone wearing this they would seriously look at it to determine how to use it. Having the USB symbol on there really helps since most people know what it is. The first responders I spoke with like the bracelet and will be informing their coworkers about it."