It has always been the mission of to save money for customers and provide good products. This laptop built-in speaker made of composite materials is a built-in complete assembly with a cable connector. When you want to replace the old built-in speaker, you just need to plug it in and use it. This complete pair of left and right speakers has high-quality sound, which can make your device the same as the first time you use it, which is very convenient and easy to use. Let you enjoy your music more when you use it. It is suitable for MacBook Pro 13-inch A1278 2011 2012. At the same time, MC700LL/A, MD313LL/A, MC724LL/A, MD314LL/A, MD101LL/A, MD102LL/A, these models are all applicable. Compatible subfamily: MacBook Pro inch Core i5 inch 2.3 13 inches Early 2011 MacBook Pro inch Core i5 inch 2.4 13 inches Late 2011 MacBook Pro inch Core i7 inch 2.7 13 inches Early 2011 MacBook Pro inch Core i7 inch 2.8 13 inches Late 2011 MacBook Pro inch Core i5 inch 2.5 13 inches Mid 2012 MacBook Pro inch Core i7 inch 2.9 13 inches Mid 2012 Speaker Replacement Kits: Repair or Repair Damaged Sound or Hum Distortion High Quality Sound: Restore the original sound, just like the first time Plug and Play: No other drivers required, easy to install Applies to: MacBook Pro 13" A1278 2011 2012 Compatible models: MC700LL/A, MD313LL/A, MC724LL/A, MD314LL/A, MD101LL/A, MD102LL/A Package include: 1x Left and Right Internal Speaker