Dual- profeional-grade paive audio isolator, so that the signal is completely connected.Dual RCA and XLR XLR inputs, XRL XLR outputs. Unbalanced signal can be input into balanced signal output, balanced signal can be input into balanced signal output. Each has a common ground and non-common ground switch.It can completely isolate the potential difference between the two syst, avoid AC noise interference caused by grounding probl, and prevent damage to the input components of the device due to exceively high potential differences. Achieve the secure nsmiion of audio signals.Remove the noise generated by the connection between the camera and the audio equipment; the noise generated when the simultaneous interpretation equipment is connected to the mixer; the noise generated by the laptop connected to the mixer; the noise generated by the electronic musical instrument connected to the mixer.Noise from distance nsmiion inconsistently; noise from equipment and equipment impedance mismatch. It is also suitable for a series of sound equipment syst such as large-scale outdoor performances, Fast Charging protection, sound engineering, conferences, entertainment venues, exhibitions, etc. It is a neceary equipment for audio system cascade.Colour:blackMaterial:MetalPackage Contents:1 x Audio signal isolatorOnly 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.