Features: Brand new and high quality Easy to install, no additional tools are needed, and the installation process is very convenient. Perfect repair accessories to keep the laptop speaker in good conditions. Replacing your old internal speaker and provide excellent clear sound performances for laptop. Suitable for 5420 5421 5430 5431 E5420 E5421 0W3929 W3929 PK230012Q00 laptop. This is a special built-in speaker for laptops with perfect sound and long service life. Specifications: Material:ABS Color:Black Length:Approx.8cm or 3.15inch Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Pair Laptop Built in 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.