The Speaker For Macbook Pro 15" Retina A1398 (Mid 2012, Early 2013) 2014 2015, Compatible Part#:MC975 MC976 ME664 Compatible Model Number:A1398. Left+Right Set speaker , can't fit for macbook pro 13 inch computer,Also can't fit for new macbook pro 15 inch laptop model ID#A1707,A1990. This speaker can only replace the laptop with model No:A1398, you can find the model Number of the computer on the bottom case Package: a pair of speakers; a set of screwdriver tools.