Configurations are described for maintaining a continuity and quality of wireless signal connection between a mobile device and systems accessible through the internet. A plurality of passages extend from a first end of the body to a second end of the body. The magnetic field induces an electric voltage in the coil during operation. The thin coatings can be useful, for example, as protective coatings in applications involving wear, as well as for thermal management. The chemiluminescent composition producing white light comprises a blue or green fluorescer or a mixture thereof as a fluorescer, and a 1,6,7,12-tetrahaloperylenedicarboximide represented by Formula 3wherein R is an alkyl or aryl group and X is Cl or Br.