| 摘要 |
<p>An earphone system 201 comprises an earphone 211, a microphone 212, a connection plug 213, a signal cable 214 for connecting those, and a hollow cylindrical high-frequency current suppressor 215 attached to the signal cable 214 at a position near the earphone 211 with covering an external circumuferencial surface 216a of the cable housing 216. When used for a terminal equipment for mobile communication, high-frequency current generated by electromagnetic waves produced from the terminal equipment can be reduced. The earphone system 201 can prevent an increase of SAR value in human head.</p> |
