Features: Eliminate unwanted effortlessly with this passive sound noise isolator, designed to suppress background hums and enhancing sound for sound reproduction in any setup. Crafted from aluminum, its housing ensures superior durability, electromagnetic shielding, and heat dissipation compared to plastic Ideal for audiophiles, studio engineers, and enthusiasts seeking professional noise reduction without complex installations or power requirements. Seamlessly integrates with home theater, car sound setups, recording equipment, and portable devices for listening across entertainment and professional environments. Delivering sustainable sound optimization while minimizing energy consumption and electronic waste. Specifications: Component:Aluminum Size:Approx.85x45mm/3.35x1.77inch Package Includes: 1Pc sound Noise Filter note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.