Before purchasing, please confirm the product model and parameters.If you have any questions about the product, please contact us, we will solve the problem for you in the first time.Internal Right and Left Speaker Compatible with MacBook Pro 13" Retina A1425 Late 2012, Early 2013Apple Part #: 923-0224Compatibility: MacBook Pro 13" Retina A1425 MacBookPro10,2 Retina Late 2012: MD212LL/A (2.5 GHz i5 or 2.9 GHz i7MacBookPro10,2 Retina Late 2012: MD213LL/A (2.5 GHz i5 or 2.9 GHz i7) MacBookPro10,2 Early 2013: ME662LL/A (2.6 GHz Core i5) MacBookPro10,2 Early 2013: ME662LL/A (3.0 GHz Core i7)Psackage Includes:Right And Left speakerBrand New 100%?Recommendation: ask professional installation?