Feature: 1. Coated with paint, smooth surface and greatly improve service life 2. The product is one-piece molding without burrs, the surface is smooth, easy to install and remove 3. Using aluminum alloy material, large heat dissipation can better maintain long-term operation 4. Adopted of high quality electronic components, and accuracy process, ensure for the durability 5. There is a knob which you can adjust to satisfy needs, convenient and simple to operate Specification: Item Type: Volume Controller Material: Aluminum alloy Color: Silver Package List: 1 x Volume Controller