Using imported Permalloy material, these audio isolation transformers enable lossless signal connection and isolate potential differences between two systems, preventing hum interference caused by grounding issues. They eliminate noise generated by connecting car audio systems to amplifiers, laptops to mixing consoles, and long-distance transmissions between devices with different grounds. Audio isolators are widely used in broadcasting and television systems, multimedia conferencing, audio and video systems, live sound reinforcement systems, large-scale outdoor performances, Lightning-Pattern protection, sound engineering, entertainment venues, exhibitions, and other venues. They also serve as a cascade device for audio systems. 1. Eliminate electrical hum and noise generated when connecting a computer to a mixer (especially when connecting a computer to an LED or video camera). 2. Eliminate noise generated when connecting cameras and audio equipment. 3. Eliminate noise generated when connecting simultaneous interpretation equipment to a mixer. 4. Eliminate noise generated when connecting electronic instruments to a mixer. 5. Eliminate noise generated when connecting devices over long distances. 6. Eliminate noise generated when connecting devices to impedance mismatches. 7. Eliminate noise generated when connecting a remote video conferencing system to a mixer. Color: Black Material: Metal Package Contents: 1 x Audio Isolator 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.