| 摘要 |
A small wireless earphone is provided to improve convenience by connecting a universal serial bus and downloading a music file. A small wireless earphone includes a universal serial bus(2), a memory card(1), and a basic operational unit. One set is composed of two earphones. The memory card is mounted inside the earphone. The earphone is on and off by pressing the basic operational unit. A sound volume is controlled by rolling the basic operational unit like a jog and shuttle. |
