| 摘要 |
A negative ion radiation string, and a necklace earphone for a mobile phone are provided to protect a user from an electromagnetic wave by connecting a conductive line to the inside of a tube having a negative ion radiation function. A negative ion radiation string includes a conductive line(110), and a negative ion tube(120). The conductive line(110) has an internal core line(111), and an insulation layer(113). A current is applied to the internal core line(111). The insulation layer(113) made of PVC(Polyvinyl Chloride) wraps the internal core line(111). The negative ion tube(120) forms a tube path to be connected to the conductive line(110). The negative ion tube(120) is made of a silicon compound in which tourmaline, a magnet, and negative ion powder are mixed. The negative ion tube(120) is mixed with one of silver powder, gold powder, and fluorescent material. |
