<p>The 1/4&#8221; audio jack (phone plug) was originally used in telephone switchboards. Now they are used mostly for analog audio applications like electric guitars. The phone plugs used in these earrings come in either silver or gold.</p> <p>The default earring findings are surgical steel. If you prefer to upgrade to sterling silver findings please add one item <a href="http://gravidmatter.myshopify.com/products/sterling-silver-finding"> Sterling Silver Finding</a> per earring order.</p> 2007-04-18T14:53:40-04:00 audio-earring 114263 Earrings 2007-04-18T14:53:40-04:00 2007-05-03T15:19:15-04:00 Gravid Matter audio, earring, jewelry, phono, plug, silver, sterling The 1/4" audio jack (phone plug) was originally used in telephone switchboards. Now they are used mostly for analog audio applications like electric guitars. The phone plugs used in these earrings come in either silver or gold. The default earring findings are surgical steel. If you prefer to upgrade to sterling silver findings please add one item <a href="http://gravidmatter.myshopify.com/products/sterling-silver-finding"> Sterling Silver Finding</a> per earring order. 2007-04-18T14:53:40-04:00 manual 91 184429 shopify continue 1 Gold 1 32.00 114263 true true 2007-05-03T15:19:15-04:00 2007-04-18T14:53:40-04:00 manual 91 184430 shopify continue 1 Silver 2 29.00 114263 true true 2007-05-03T15:19:15-04:00 2007-04-18T14:53:40-04:00 170017 1 114263 2007-05-03T15:19:15-04:00 http://static.shopify.com/s/files/1/0001/8749/products/ap_e_s.jpg?1268024573 Title