Never Use Against Head With Case Open!
RF Safe Radiation Safe Air-tube Headset
TEXT MORE THAN TALK! Moving a cell phone even a 1/4 inch from the body can greatly reduce radiation exposure, at one inch the intensity is 16 fold less than 1/4 inch. Signal strength falls off as the square of the distance from the source. This means that if you double the distance to the source, RF intensity is four times less since two squared is four.