1、COMPATIBLE MODELS: Laptop internal speaker kit, designed for Dell Latitude E5570 5570, etc, with precise cutouts that fit perfectly on the part that needs to be replaced. 2、COMPACT AND LIGHTWEIGHT: Laptop internal built in speaker kit, compact structure, does not take up too much space, lightweight, will not increase the burden on the laptop. 3、REPLACEMENT PART: Laptop internal speaker set, perfect for replacing broken, damaged, cracked and unusable speakers, stable and reliable, can improve your sound experience. 4、PREMIUM MATERIAL: Laptop internal left right speaker are made of premium ABS material, sturdy and durable, wearable, not easy to damage, can be used for a long time. 5、PROFESSIONAL INSTALLATION: Please replace the notebook internal left right speaker under the guidance of a professional technician to avoid unnecessary damage.