Product Name:A1502 Speaker Set Year:for 2013 2014 2015 APN:923-0557 923-00509 YEAR INTRO. NAME SIZE MODEL EMC ORDER# PROCESSOR Late 2013 20131022 MB Pro Retina 13.3 A1502 (EMC 2678) ME864xx/A "Core i5" 2.4 13inch 2.4 GHz Core i5 (I5-4258U) Late 2013 20131022 MB Pro Retina 13.3 A1502 (EMC 2678) ME866xx/A "Core i5" 2.6 13inch 2.6 GHz Core i5 (I5-4288U) Late 2013 20131022 MB Pro Retina 13.3 A1502 (EMC 2678) BTO/CTO "Core i7" 2.8 13inch 2.8 GHz Core i7 (I7-4558U) Mid 2014 20140729 MB Pro Retina 13.3 A1502 (EMC 2875) MGX72LL/A "Core i5" 2.6 13inch 2.6 GHz Core i5 (I5-4278U) Mid 2014 20140729 MB Pro Retina 13.3 A1502 (EMC 2875) MGX92LL/A "Core i5" 2.8 13inch 2.8 GHz Core i5 (I5-4308U) Mid 2014 20140729 MB Pro Retina 13.3 A1502 (EMC 2875) BTO/CTO "Core i7" 3.0 13inch 3.0 GHz Core i7 (I7-4578U) Early 2015 20150309 MB Pro Retina 13.3 A1502 (EMC 2835) MF839xx/A "Core i5" 2.7 13inch 2.7 GHz Core i5 (I5-5257U) Early 2015 20150309 MB Pro Retina 13.3 A1502 (EMC 2835) MF841xx/A "Core i5" 2.9 13inch 2.9 GHz Core i5 (I5-5287U) Early 2015 20150309 MB Pro Retina 13.3 A1502 (EMC 2835) BTO/CTO "Core i7" 3.1 13inch 3.1 GHz Core i7 (I7-5557U) Colour:black Material:plastic Package Contents: 1* pair Speaker Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.