Feature:1. Scope of Application: The internal speaker is suitable for laptop for A1278 Speaker, for mb990 Speaker, for A1278 Built in Speaker 2011 to 20122. ABS Material: The internal speaker set replacement is made of environmentally friendly ABS material, which is wear resistant and durable3. Easy to Use: The laptop internal speaker set replacement is easy to use and can be used after installation to meet your daily office needs4. Small and Compact: The small and compact body does not take up too much use space, which is convenient for storage and use5. Package Content: The laptop internal speaker set replacement includes 2pcs, you can use the replacement with confidenceSpecification:Item Type: Internal SpeakerMaterial: ABSApplicable: For Laptop for A1278 Speaker, for mb990 Speaker, for A1278 Built in Speaker 2011 to 2012.Package List:2 x Internal Speaker