all over the legal safety limit. what does it exist for if this isn t known to be cancer-causing why is there a legal safety limit? well, radiation comes from cell phones. that s well established. and it can cause burns and thermal damage to biological tissue very similar to how a microwave oven cooks food. that s why there was a safety standard established in the 1990s. but what s interesting they established that standard based on people carrying cell phones in holsters and belt clips. and so manufacturers, you remember that. and so the manufacturers could test the phone about an inch away from the body. but no one carries phones like that anymore. it s in their pocket, front pocket, back pocket. so we did two rounds of testing. one exactly how the fcc requires. and then we did this pocket test where we put the phones a little bit closer to see what the true exposure would be to someone carrying phones in modern usage and those results were pretty much off the charts.