This is a replacement set of speakers for the 13 Retina MacBook Pro released in Early 2013.
Speaker is on the left-hand side when facing the screen.
Part Numbers: 923-0224.
Printed Number: 609-0358, 609-0359.
<li class="maclist-li"><h4>Compatible with : </h4>
<ul>
Pro Retina 13 (A1425, Mid 2012/ Early 2013).