Features: 1. Ground Ring Isolator/Noise Filter with Unreduced Bass helps reduce noise from car and home audio electrical systems, providing high-fidelity sound quality output. A perfect solution for car and home stereo noise issues. 2. Made of high-quality ABS fireproof shell, sturdy and durable. 3. Plug and play design; the audio isolation transformer is easy to install without complicated tools and can be used after connecting the cables correctly. White and red color coding. 4. High-fidelity performance; the ground loop audio noise reducer is compatible with car audio systems, amplifiers, speakers, or mixers, offering stable performance, high precision, and reliability. Helps eliminate noise in car speakers and home stereo systems for clear sound. 5. Wide range of applications; the audio noise isolator filter eliminates ground loop noise between the audio source and the radio. Suitable for portable devices with audio outputs, home stereo speakers, amplifiers, equalizers, and more. Material: ABS Product Size: Shell Size: Approximately 65 x 38mm; Gold-Plated Wire Length: Approximately 100mm Type: Adapter Cable Wire Core Type: Copper Core Interface: Audio Output Color: Black Package Contents: 1 x Audio Isolator Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3cm.