Feature:1. Effective Noise Elimination: The sound signal isolator can effectively isolate the potential difference between 2 systems to avoid AC sound interference caused by grounding problems, and prevent damage to the equipment's input level due to excessive potential difference.2. High Performance: Sound signal isolator is easy to use, radio corporation of America(L/R) input and output, with a common ground switch, ensures that loud signals do not distort.3. High Fidelity Sound: Plug and play, noise cancellation, pure sound quality. Pure, rounded, harmonious and nature sound quality. It can easily distinguish subtle differences in tone, good sound field.4. Wide Applications: Applicable to radio stations, TV stations sound transmission, professional sound performance, laptop connection to the console, simultaneous interpretation system connected to the sound system, video system connected to the sound system, and other system connections. The isolator prevents static electric shock and protects the equipment.5. Campus Broadcast Large Conference: In recording studios or other microphones to DVR sound, there are large buzzing current noises. Once the isolator is replaced, it will be normal. There is a current sound between the amplifier and the speaker or sound system. As long as the isolator is connected before the amplifier and speaker, it will be normal.6. Projection and Amplifier: When connecting the projector and amplifier at the same time, there will be a current sound. Even if the laptop does not connect to the power adapter and uses its own battery, there will still be an AC sound. However, as long as the projector is unplugged, there will be no current noise. Replace with our isolator to return to normal.Specification:Item Type: Sound Signal IsolatorMaterial: Aluminum AlloyInput Output Interface: Radio Corporation of AmericaInput Output Impedance: 600 600 (AC Impedance)Isolation Voltage: AC50Hz-60Hz 0v-1500vInsulation Resistance: DC1000V 100MQFrequency Response: 0-20KHZ ()Input Level: +28d Bu(THD<0.5%,50HzTHD<0.01%, 1KHz)Loss Attenuation: -0.5DB at 600Q LoadDistortion Degree: 0.0025%(+4DBU 1KHZ).Package List:1 x Sound Signal Isolator1 x User Manual