| 摘要 |
<p>Disclosed herein is a four-pole plug for connection to a PCB. The four-pole plug includes a plug body unit (10) which has a long cylindrical shape and is connected to a jack of an acoustic apparatus, a connection terminal unit (20) which is coupled to an end of the plug body unit, and a terminal housing (30) which receives the connection terminal unit therein and has an opening at a predetermined position so that a portion of the connection terminal unit protrudes from the terminal housing through the opening.</p> |
