[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: PROX102 interface: 6.35&XLR x 1 Input impedance: 600Ω(AC impedance) Output interface: XLRx1 stereo Output impedance: 600Ω(AC impedance) Ground isolation switch: with ground switch Colour:Black Material:Aluminum Alloy Package 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.