By connecting the device casing, ground wire, shielding layer, etc., you can static electricity and interference, improve background darkness, and enhance sound clarity. Electronic black holes can improve the background quietness of the sound. A dark background naturally enriches details, and details such as airiness are instantly revealed. Electronic black holes can improve the spatial sense of the sound field. This enhanced sense of space naturally makes the sound field more open, and the positioning of vocals and instruments becomes clearer and more . Electronic black holes can improve the density and roundness of the mid-range, making vocals more sweet, delicate, and magnetic. Design and Style: Sleek, modern aesthetic with a -inspired design. Usage and Purpose: Eliminates static electricity and noise, enhances sound quality. Applicable Scenario: Home audio, car audio, and professional audio setups. Performance and Property: Absorbs power clutter, improves sound clarity. No connecting wires included. Color:As Shown Material:Metal Package Contents: 1 * Power Purifier(No connecting wires included) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.