The present invention is a component carrier consisting of a plate of insulating material having a plurality of apertures for accepting the leads of a thru-hole differential and common mode filter. The mat has high hiding power for substrates like board or blanket of fiber glass insulation and other colored materials. A built-in microphone of the communication device receives the audio frequency outputted from the stereo. The method includes receiving second markup language code. The ac magnetic susceptibility of the reagent after the association with the biomolecules is measured.