(What I am talking about will look like a pager/cell phone...before that issue gets raised). Hi.. We are hoping to start a laser tag-like game that people play 24 hours/day, and it's basically a giant game of assassination laser tag that is always ongoing. However...the typical laser tag 'ammunition' won't work because it won't penetrate pockets or bags..It has to directly hit the sensor. But we want something that is unobtrusive, where people don't need to wear visible sensors or anything..I want the signals to get through several layers, like cell phones and beepers do. Here's some technical info of what won't work that may be helpful - lasertagparts.com/mtformat-2.htm Honestly, I have very little knowledge about this aspect of what we want to do. :shrug: But can anyone here think of a way to make something like this work? I could give more details about what we hope the prototype will look like/include, but I need to figure out if it's even possible to create..