Consequently, manufacturers will not make it easy to compare levels before buying. The numbers will not appear on the outside of cell phone packages, only inside along with a brochure explaining radiation safety guidelines. To check a phone before buying, consumers must look it up on the Internet. Amid this confusion, a new cottage industry is marketing products claiming to limit radiation absorption. They range from foam wafers stuck onto the phone's earpiece to an antenna-attached gadget that looks like a ceramic ladybug.
Experts warn against the hype.
For a device which actually claims to reduce radiation, they should look for the data that it in fact does that. Reassuringly, newer digital phones already emit less radiation then older analog models. Still, one expert on radiofrequency energy says choosing lower-emitting phones makes sense for now. Radiofrequency waves are non-ionizing radiation, far less worrisome than other types of radiation types such as what suntanners absorb. On an energy-frequency scale, cell phone RF waves fall somewhere between microwave ovens and television signals.