【Easy Installation】This auditory isolation is, not need for any complicated tools, and it can be used after correctly connecting the 6.35 1 / 4inch 【Durability Metal Design】Strong anti interferences ability, suitable for long-time use [ Portable Sound Canceller] Suitable for auditory equipment, it can isolate ground interferences and filter noise from different auditory 【Multi-scenario Use】auditory Noise Canceller can be used with amplifiers, loudspeakers or mixer with stable, high accuracy and reliability 【Built-in 2ch auditory Isolator】It can help you reduce the noise of your car and home auditory electrical device and provide you with highly auditory