1. These are built-in left and right speakers specifically designed for laptops, with fine sound quality 2. 360-degree surround sound effects to meet different noise reduction needs 3. Small size, large volume, high-quality built-in laptop speakers, wide range of applications 4. Strong compatibility, suitable for HP laptops, can replace laptop speakers 5. Durable and easy to install. Product Name: Built-in Laptop Speakers Type: Laptop Speakers Purpose: Amplification Compatible Brands: Suitable for HP Laptops Applicable Model: Suitable for HP HP Probook 4530S 4531S Laptop Internal Speakers Color: Black Material: Plastic Package Contents: 1 Pair x Laptop Built-in Speaker Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm.