Item Type: Internal Speaker Material: ABS Applicable: For Laptop for A1278 Speaker, for mb990 Speaker, for A1278 Built in Speaker 2011 to 20121,Scope of Application: The internal speaker is suitable for laptop for A1278 Speaker, for mb990 Speaker, for A1278 Built in Speaker 2011 to 2012 2,ABS Material: The internal speaker set replacement is made of environmentally friendly ABS material, which is wear resistant and durable 3,Easy to Use: The laptop internal speaker set replacement is easy to use and can be used after installation to meet your daily office needs 4,Small and Compact: The small and compact body does not take up too much use space, which is convenient for storage and use 5,Package Content: The laptop internal speaker set replacement includes 2pcs, you can use the replacement with confidence2 x Internal Speaker Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.