[Ground isolation module eliminates current sound] Helps reduce noise from car and home audio electric systems, delivering HiFi quality sound output. Effectively addresses noise issues in car and home stereo systems. [Plug & Play Design] The audio isolation transformer is easy to install with no complicated tools required. Ready to use after connecting the red and white cables. Please confirm product compatibility before purchase. [HiFi Performance] The ground loop audio noise eliminator works with car stereos, amplifiers, speakers, and mixers. Offers stable performance, high precision, and reliable operation. Eliminates humming sounds from car speakers and home stereo systems for clear audio enjoyment. [Multi-device Compatibility] Suitable for connections between various electronic devices and audio playback equipment, such as linking laptops, DVD players, TVs, CD players to speakers, and ideal for car AUX audio connections. [Alloy Shell with Gold-Plated Interface] Constructed with an alloy shell for high durability and resistance to damage. The gold-plated interface prevents oxidation, rust, and signal interference, ensuring stable signal transmission. Color: As shown Material: Plastic Package Contents: 1 x Audio isolator (Note: Product appearance may vary slightly due to different batches, which does not affect functionality) Only the items listed are included; other accessories are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement tolerance: +/- 1-3 cm.