Televisions, computers, cellular phones, microwaves, and cars make use of a great number of semiconductors. The waves (electromagnetic waves) emitted by these interfere with the normal waves given off by the human body and produce harmful effects. This is why many people who use electrical appliances for a long time complain that they feel bad. EM Ceramic stickers, placed near the human body or attached to electrical appliances, work to offset the effects of harmful waves by not resonating with them. For example, 2 LFA measurements indicate that a cellular phone in use normally registers a minus 20 reading. When a E-Sera 3000 sticker is attached to the phone, however, this reading rises to a plus 20 level. The design of the E-Sera sticker is conducive to energy absorption.