Features: Brand new and high quality This is a special built-in speaker for laptops with perfect sound and long service life. Replacing your old internal speaker and provide excellent clear sound performances for laptop. Perfect repair accessories to keep the laptop speaker in good conditions. Easy to install, no additional tools are needed, and the installation process is very convenient. Suitable for 5420 5421 5430 5431 E5420 E5421 0W3929 W3929 PK230012Q00 laptop. Specifications: Material:ABS Color:Black Length:Approx.8cm/3.15inch Package Includes: 1 Pair Laptop Built in Speaker 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.