[Professional eliminator] - Effectively isolate the ground loop noise, the interference noise caused by the phase difference between the ultra-long audio cable and different audio equipment, and bring you clean and lossless audio.[Safe Hot Swap] - Helps protect transmission between audio devices, preventing them from being burned out due to voltage differences or static electricity, as well as preventing blasting noise when inserting or pulling wires[Grounding Settings] - With left and right grounding switch and universal grounding switch, can avoid buzzing interference caused by grounding problems.[Wide range of applications] - This professional ground ring isolator is suitable for almost any electronic device where you need to noise. Such as sound systems, subwoofers, karaoke speakers, mixers, guitars, keyboards, etc.Note: This XLR cable is suitable for all dynamic microphones. However, when using capacitive microphones, phantom power is required. In addition, this cable does not support games such as for .Product model: PROX102interface: 6.35&XLR x 1Input impedance: 600Ω(AC impedance)Output interface: XLRx1 stereoOutput impedance: 600Ω(AC impedance)Ground isolation switch: with ground switchColour:BlackMaterial:Aluminum AlloyPackage Contents:2 x Audio Isolator(Due to different product batches, the appearance , which does not affect the use)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.