Builtin 2channel audio isolator reduces noise from car and home audio devices, delivering clearer sound across both channels. Portable sound canceller isolates ground loop interference and filters noise from different audio equipment for more consistent listening. Durable metal construction offers strong antiinterference performance and is suitable for longterm use. Easy installation with no special tools required; simply connect using the 6.35 mm (1/4 inch) interface. Key specifications and compatibility Interface: 6.35 mm (1/4 inch) jack Material: metal Applications: car audio, home audio, and other audio equipment that benefits from isolation and noise reduction Practical use scenarios In a car with aftermarket stereo or amplifier to minimize engine and electrical noise while driving In a home audio setup where multiple devices share a power outlet to reduce ground hum In a recording or practice space connecting instruments or audio interfaces with 1/4 inch jacks to reduce ground loop noise