MMOBIEL : Speaker Set Left and Right 100% New MMOBIEL Replacement. Compatible with MacBook Pro Retina 15" A1398 Product Nr: 923-0660 609-0336-A Late 2012 – mid 2015 Important: Please check the Model Number before purchasing this Item. You will find the Model Number on the back of your device (see product images on the left). Easy installation: Replace your faulty Speaker Set Left and Right. Product provided by MMOBIEL - We always try our best to exceed your expectations at every turn. Join the ever-growing list of satisfied customers and discover the difference with MMOBIEL.